^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) * fs/cifs/cifsglob.h
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * Copyright (C) International Business Machines Corp., 2002,2008
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Author(s): Steve French (sfrench@us.ibm.com)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Jeremy Allison (jra@samba.org)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * This library is free software; you can redistribute it and/or modify
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * it under the terms of the GNU Lesser General Public License as published
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) * by the Free Software Foundation; either version 2.1 of the License, or
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) * (at your option) any later version.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) * This library is distributed in the hope that it will be useful,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) * but WITHOUT ANY WARRANTY; without even the implied warranty of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) * the GNU Lesser General Public License for more details.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #ifndef _CIFS_GLOB_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #define _CIFS_GLOB_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include <linux/in.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include <linux/in6.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #include <linux/mempool.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #include <linux/workqueue.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #include "cifs_fs_sb.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #include "cifsacl.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #include <crypto/internal/hash.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #include <linux/scatterlist.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #include <uapi/linux/cifs/cifs_mount.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #include "smb2pdu.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #define CIFS_MAGIC_NUMBER 0xFF534D42 /* the first four bytes of SMB PDUs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) #define SMB_PATH_MAX 260
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) #define CIFS_PORT 445
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) #define RFC1001_PORT 139
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) * The sizes of various internal tables and strings
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) #define MAX_UID_INFO 16
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) #define MAX_SES_INFO 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) #define MAX_TCON_INFO 4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) #define MAX_TREE_SIZE (2 + CIFS_NI_MAXHOST + 1 + CIFS_MAX_SHARE_LEN + 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) #define CIFS_MIN_RCV_POOL 4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) #define MAX_REOPEN_ATT 5 /* these many maximum attempts to reopen a file */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) * default attribute cache timeout (jiffies)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) #define CIFS_DEF_ACTIMEO (1 * HZ)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) * max attribute cache timeout (jiffies) - 2^30
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) #define CIFS_MAX_ACTIMEO (1 << 30)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) * Max persistent and resilient handle timeout (milliseconds).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) * Windows durable max was 960000 (16 minutes)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) #define SMB3_MAX_HANDLE_TIMEOUT 960000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) * MAX_REQ is the maximum number of requests that WE will send
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) * on one socket concurrently.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) #define CIFS_MAX_REQ 32767
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) #define RFC1001_NAME_LEN 15
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) #define RFC1001_NAME_LEN_WITH_NULL (RFC1001_NAME_LEN + 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) /* maximum length of ip addr as a string (including ipv6 and sctp) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) #define SERVER_NAME_LENGTH 80
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) #define SERVER_NAME_LEN_WITH_NULL (SERVER_NAME_LENGTH + 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) /* echo interval in seconds */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) #define SMB_ECHO_INTERVAL_MIN 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) #define SMB_ECHO_INTERVAL_MAX 600
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) #define SMB_ECHO_INTERVAL_DEFAULT 60
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) /* maximum number of PDUs in one compound */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) #define MAX_COMPOUND 5
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) * Default number of credits to keep available for SMB3.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) * This value is chosen somewhat arbitrarily. The Windows client
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) * defaults to 128 credits, the Windows server allows clients up to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) * 512 credits (or 8K for later versions), and the NetApp server
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) * does not limit clients at all. Choose a high enough default value
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) * such that the client shouldn't limit performance, but allow mount
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) * to override (until you approach 64K, where we limit credits to 65000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) * to reduce possibility of seeing more server credit overflow bugs.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) #define SMB2_MAX_CREDITS_AVAILABLE 32000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) #include "cifspdu.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) #ifndef XATTR_DOS_ATTRIB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) #define XATTR_DOS_ATTRIB "user.DOSATTRIB"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) * CIFS vfs client Status information (based on what we know.)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) /* associated with each tcp and smb session */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) enum statusEnum {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) CifsNew = 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) CifsGood,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) CifsExiting,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) CifsNeedReconnect,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) CifsNeedNegotiate
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) enum securityEnum {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) Unspecified = 0, /* not specified */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) LANMAN, /* Legacy LANMAN auth */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) NTLM, /* Legacy NTLM012 auth with NTLM hash */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) NTLMv2, /* Legacy NTLM auth with NTLMv2 hash */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) RawNTLMSSP, /* NTLMSSP without SPNEGO, NTLMv2 hash */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) Kerberos, /* Kerberos via SPNEGO */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) struct session_key {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) unsigned int len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) char *response;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) /* crypto security descriptor definition */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) struct sdesc {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) struct shash_desc shash;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) char ctx[];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) /* crypto hashing related structure/fields, not specific to a sec mech */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) struct cifs_secmech {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) struct crypto_shash *hmacmd5; /* hmac-md5 hash function */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) struct crypto_shash *md5; /* md5 hash function */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) struct crypto_shash *hmacsha256; /* hmac-sha256 hash function */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) struct crypto_shash *cmacaes; /* block-cipher based MAC function */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) struct crypto_shash *sha512; /* sha512 hash function */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) struct sdesc *sdeschmacmd5; /* ctxt to generate ntlmv2 hash, CR1 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) struct sdesc *sdescmd5; /* ctxt to generate cifs/smb signature */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) struct sdesc *sdeschmacsha256; /* ctxt to generate smb2 signature */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) struct sdesc *sdesccmacaes; /* ctxt to generate smb3 signature */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) struct sdesc *sdescsha512; /* ctxt to generate smb3.11 signing key */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) struct crypto_aead *ccmaesencrypt; /* smb3 encryption aead */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) struct crypto_aead *ccmaesdecrypt; /* smb3 decryption aead */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) /* per smb session structure/fields */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) struct ntlmssp_auth {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) bool sesskey_per_smbsess; /* whether session key is per smb session */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) __u32 client_flags; /* sent by client in type 1 ntlmsssp exchange */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) __u32 server_flags; /* sent by server in type 2 ntlmssp exchange */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) unsigned char ciphertext[CIFS_CPHTXT_SIZE]; /* sent to server */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) char cryptkey[CIFS_CRYPTO_KEY_SIZE]; /* used by ntlmssp */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) struct cifs_cred {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) int uid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) int gid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) int mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) int cecount;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) struct cifs_sid osid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) struct cifs_sid gsid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) struct cifs_ntace *ntaces;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) struct cifs_ace *aces;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) *****************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) * Except the CIFS PDUs themselves all the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) * globally interesting structs should go here
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) *****************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) * A smb_rqst represents a complete request to be issued to a server. It's
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) * formed by a kvec array, followed by an array of pages. Page data is assumed
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) * to start at the beginning of the first page.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) struct smb_rqst {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) struct kvec *rq_iov; /* array of kvecs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) unsigned int rq_nvec; /* number of kvecs in array */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) struct page **rq_pages; /* pointer to array of page ptrs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) unsigned int rq_offset; /* the offset to the 1st page */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) unsigned int rq_npages; /* number pages in array */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) unsigned int rq_pagesz; /* page size to use */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) unsigned int rq_tailsz; /* length of last page */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) struct mid_q_entry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) struct TCP_Server_Info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) struct cifsFileInfo;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) struct cifs_ses;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) struct cifs_tcon;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) struct dfs_info3_param;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) struct cifs_fattr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) struct smb_vol;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) struct cifs_fid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) struct cifs_readdata;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) struct cifs_writedata;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) struct cifs_io_parms;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) struct cifs_search_info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) struct cifsInodeInfo;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) struct cifs_open_parms;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) struct cifs_credits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) struct smb_version_operations {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) int (*send_cancel)(struct TCP_Server_Info *, struct smb_rqst *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) struct mid_q_entry *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) bool (*compare_fids)(struct cifsFileInfo *, struct cifsFileInfo *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) /* setup request: allocate mid, sign message */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) struct mid_q_entry *(*setup_request)(struct cifs_ses *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) struct TCP_Server_Info *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) struct smb_rqst *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) /* setup async request: allocate mid, sign message */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) struct mid_q_entry *(*setup_async_request)(struct TCP_Server_Info *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) struct smb_rqst *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) /* check response: verify signature, map error */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) int (*check_receive)(struct mid_q_entry *, struct TCP_Server_Info *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) bool);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) void (*add_credits)(struct TCP_Server_Info *server,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) const struct cifs_credits *credits,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) const int optype);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) void (*set_credits)(struct TCP_Server_Info *, const int);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) int * (*get_credits_field)(struct TCP_Server_Info *, const int);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) unsigned int (*get_credits)(struct mid_q_entry *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) __u64 (*get_next_mid)(struct TCP_Server_Info *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) void (*revert_current_mid)(struct TCP_Server_Info *server,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) const unsigned int val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) /* data offset from read response message */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) unsigned int (*read_data_offset)(char *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) * Data length from read response message
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) * When in_remaining is true, the returned data length is in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) * message field DataRemaining for out-of-band data read (e.g through
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) * Memory Registration RDMA write in SMBD).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) * Otherwise, the returned data length is in message field DataLength.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) unsigned int (*read_data_length)(char *, bool in_remaining);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) /* map smb to linux error */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) int (*map_error)(char *, bool);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) /* find mid corresponding to the response message */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) struct mid_q_entry * (*find_mid)(struct TCP_Server_Info *, char *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) void (*dump_detail)(void *buf, struct TCP_Server_Info *ptcp_info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) void (*clear_stats)(struct cifs_tcon *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) void (*print_stats)(struct seq_file *m, struct cifs_tcon *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) void (*dump_share_caps)(struct seq_file *, struct cifs_tcon *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) /* verify the message */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) int (*check_message)(char *, unsigned int, struct TCP_Server_Info *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) bool (*is_oplock_break)(char *, struct TCP_Server_Info *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) int (*handle_cancelled_mid)(struct mid_q_entry *, struct TCP_Server_Info *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) void (*downgrade_oplock)(struct TCP_Server_Info *server,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) struct cifsInodeInfo *cinode, __u32 oplock,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) unsigned int epoch, bool *purge_cache);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) /* process transaction2 response */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) bool (*check_trans2)(struct mid_q_entry *, struct TCP_Server_Info *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) char *, int);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) /* check if we need to negotiate */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) bool (*need_neg)(struct TCP_Server_Info *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) /* negotiate to the server */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) int (*negotiate)(const unsigned int, struct cifs_ses *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) /* set negotiated write size */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) unsigned int (*negotiate_wsize)(struct cifs_tcon *, struct smb_vol *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) /* set negotiated read size */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) unsigned int (*negotiate_rsize)(struct cifs_tcon *, struct smb_vol *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) /* setup smb sessionn */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) int (*sess_setup)(const unsigned int, struct cifs_ses *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) const struct nls_table *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) /* close smb session */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) int (*logoff)(const unsigned int, struct cifs_ses *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) /* connect to a server share */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) int (*tree_connect)(const unsigned int, struct cifs_ses *, const char *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) struct cifs_tcon *, const struct nls_table *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) /* close tree connecion */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) int (*tree_disconnect)(const unsigned int, struct cifs_tcon *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) /* get DFS referrals */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) int (*get_dfs_refer)(const unsigned int, struct cifs_ses *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) const char *, struct dfs_info3_param **,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) unsigned int *, const struct nls_table *, int);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) /* informational QFS call */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) void (*qfs_tcon)(const unsigned int, struct cifs_tcon *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) struct cifs_sb_info *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) /* check if a path is accessible or not */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) int (*is_path_accessible)(const unsigned int, struct cifs_tcon *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) struct cifs_sb_info *, const char *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) /* query path data from the server */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) int (*query_path_info)(const unsigned int, struct cifs_tcon *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) struct cifs_sb_info *, const char *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) FILE_ALL_INFO *, bool *, bool *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) /* query file data from the server */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) int (*query_file_info)(const unsigned int, struct cifs_tcon *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) struct cifs_fid *, FILE_ALL_INFO *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) /* query reparse tag from srv to determine which type of special file */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) int (*query_reparse_tag)(const unsigned int xid, struct cifs_tcon *tcon,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) struct cifs_sb_info *cifs_sb, const char *path,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) __u32 *reparse_tag);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) /* get server index number */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) int (*get_srv_inum)(const unsigned int, struct cifs_tcon *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) struct cifs_sb_info *, const char *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) u64 *uniqueid, FILE_ALL_INFO *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) /* set size by path */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) int (*set_path_size)(const unsigned int, struct cifs_tcon *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) const char *, __u64, struct cifs_sb_info *, bool);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) /* set size by file handle */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) int (*set_file_size)(const unsigned int, struct cifs_tcon *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) struct cifsFileInfo *, __u64, bool);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) /* set attributes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) int (*set_file_info)(struct inode *, const char *, FILE_BASIC_INFO *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) const unsigned int);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) int (*set_compression)(const unsigned int, struct cifs_tcon *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) struct cifsFileInfo *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) /* check if we can send an echo or nor */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) bool (*can_echo)(struct TCP_Server_Info *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) /* send echo request */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) int (*echo)(struct TCP_Server_Info *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) /* create directory */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) int (*posix_mkdir)(const unsigned int xid, struct inode *inode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) umode_t mode, struct cifs_tcon *tcon,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) const char *full_path,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) struct cifs_sb_info *cifs_sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) int (*mkdir)(const unsigned int xid, struct inode *inode, umode_t mode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) struct cifs_tcon *tcon, const char *name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) struct cifs_sb_info *sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) /* set info on created directory */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) void (*mkdir_setinfo)(struct inode *, const char *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) struct cifs_sb_info *, struct cifs_tcon *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) const unsigned int);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) /* remove directory */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) int (*rmdir)(const unsigned int, struct cifs_tcon *, const char *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) struct cifs_sb_info *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) /* unlink file */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) int (*unlink)(const unsigned int, struct cifs_tcon *, const char *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) struct cifs_sb_info *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) /* open, rename and delete file */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) int (*rename_pending_delete)(const char *, struct dentry *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) const unsigned int);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) /* send rename request */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) int (*rename)(const unsigned int, struct cifs_tcon *, const char *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) const char *, struct cifs_sb_info *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) /* send create hardlink request */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) int (*create_hardlink)(const unsigned int, struct cifs_tcon *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) const char *, const char *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) struct cifs_sb_info *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) /* query symlink target */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) int (*query_symlink)(const unsigned int, struct cifs_tcon *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) struct cifs_sb_info *, const char *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) char **, bool);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) /* open a file for non-posix mounts */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) int (*open)(const unsigned int, struct cifs_open_parms *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) __u32 *, FILE_ALL_INFO *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) /* set fid protocol-specific info */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) void (*set_fid)(struct cifsFileInfo *, struct cifs_fid *, __u32);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) /* close a file */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) void (*close)(const unsigned int, struct cifs_tcon *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) struct cifs_fid *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) /* close a file, returning file attributes and timestamps */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) void (*close_getattr)(const unsigned int xid, struct cifs_tcon *tcon,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) struct cifsFileInfo *pfile_info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) /* send a flush request to the server */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) int (*flush)(const unsigned int, struct cifs_tcon *, struct cifs_fid *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) /* async read from the server */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) int (*async_readv)(struct cifs_readdata *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) /* async write to the server */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) int (*async_writev)(struct cifs_writedata *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) void (*release)(struct kref *));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) /* sync read from the server */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) int (*sync_read)(const unsigned int, struct cifs_fid *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) struct cifs_io_parms *, unsigned int *, char **,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) int *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) /* sync write to the server */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) int (*sync_write)(const unsigned int, struct cifs_fid *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) struct cifs_io_parms *, unsigned int *, struct kvec *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) unsigned long);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) /* open dir, start readdir */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) int (*query_dir_first)(const unsigned int, struct cifs_tcon *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) const char *, struct cifs_sb_info *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) struct cifs_fid *, __u16,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) struct cifs_search_info *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) /* continue readdir */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) int (*query_dir_next)(const unsigned int, struct cifs_tcon *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) struct cifs_fid *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) __u16, struct cifs_search_info *srch_inf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) /* close dir */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) int (*close_dir)(const unsigned int, struct cifs_tcon *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) struct cifs_fid *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) /* calculate a size of SMB message */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) unsigned int (*calc_smb_size)(void *buf, struct TCP_Server_Info *ptcpi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) /* check for STATUS_PENDING and process the response if yes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) bool (*is_status_pending)(char *buf, struct TCP_Server_Info *server);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) /* check for STATUS_NETWORK_SESSION_EXPIRED */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) bool (*is_session_expired)(char *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) /* send oplock break response */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) int (*oplock_response)(struct cifs_tcon *, struct cifs_fid *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) struct cifsInodeInfo *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) /* query remote filesystem */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) int (*queryfs)(const unsigned int, struct cifs_tcon *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) struct cifs_sb_info *, struct kstatfs *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) /* send mandatory brlock to the server */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) int (*mand_lock)(const unsigned int, struct cifsFileInfo *, __u64,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) __u64, __u32, int, int, bool);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) /* unlock range of mandatory locks */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) int (*mand_unlock_range)(struct cifsFileInfo *, struct file_lock *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) const unsigned int);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) /* push brlocks from the cache to the server */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) int (*push_mand_locks)(struct cifsFileInfo *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) /* get lease key of the inode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) void (*get_lease_key)(struct inode *, struct cifs_fid *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) /* set lease key of the inode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) void (*set_lease_key)(struct inode *, struct cifs_fid *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) /* generate new lease key */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) void (*new_lease_key)(struct cifs_fid *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) int (*generate_signingkey)(struct cifs_ses *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) int (*calc_signature)(struct smb_rqst *, struct TCP_Server_Info *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) bool allocate_crypto);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) int (*set_integrity)(const unsigned int, struct cifs_tcon *tcon,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) struct cifsFileInfo *src_file);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) int (*enum_snapshots)(const unsigned int xid, struct cifs_tcon *tcon,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) struct cifsFileInfo *src_file, void __user *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) int (*notify)(const unsigned int xid, struct file *pfile,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) void __user *pbuf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) int (*query_mf_symlink)(unsigned int, struct cifs_tcon *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) struct cifs_sb_info *, const unsigned char *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) char *, unsigned int *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) int (*create_mf_symlink)(unsigned int, struct cifs_tcon *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) struct cifs_sb_info *, const unsigned char *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) char *, unsigned int *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) /* if we can do cache read operations */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) bool (*is_read_op)(__u32);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) /* set oplock level for the inode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) void (*set_oplock_level)(struct cifsInodeInfo *, __u32, unsigned int,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) bool *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) /* create lease context buffer for CREATE request */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) char * (*create_lease_buf)(u8 *lease_key, u8 oplock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) /* parse lease context buffer and return oplock/epoch info */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) __u8 (*parse_lease_buf)(void *buf, unsigned int *epoch, char *lkey);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) ssize_t (*copychunk_range)(const unsigned int,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) struct cifsFileInfo *src_file,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) struct cifsFileInfo *target_file,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) u64 src_off, u64 len, u64 dest_off);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) int (*duplicate_extents)(const unsigned int, struct cifsFileInfo *src,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) struct cifsFileInfo *target_file, u64 src_off, u64 len,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) u64 dest_off);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) int (*validate_negotiate)(const unsigned int, struct cifs_tcon *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) ssize_t (*query_all_EAs)(const unsigned int, struct cifs_tcon *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) const unsigned char *, const unsigned char *, char *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) size_t, struct cifs_sb_info *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) int (*set_EA)(const unsigned int, struct cifs_tcon *, const char *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) const char *, const void *, const __u16,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) const struct nls_table *, struct cifs_sb_info *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) struct cifs_ntsd * (*get_acl)(struct cifs_sb_info *, struct inode *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) const char *, u32 *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) struct cifs_ntsd * (*get_acl_by_fid)(struct cifs_sb_info *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) const struct cifs_fid *, u32 *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) int (*set_acl)(struct cifs_ntsd *, __u32, struct inode *, const char *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) int);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) /* writepages retry size */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) unsigned int (*wp_retry_size)(struct inode *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) /* get mtu credits */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) int (*wait_mtu_credits)(struct TCP_Server_Info *, unsigned int,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) unsigned int *, struct cifs_credits *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) /* adjust previously taken mtu credits to request size */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) int (*adjust_credits)(struct TCP_Server_Info *server,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) struct cifs_credits *credits,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) const unsigned int payload_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) /* check if we need to issue closedir */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) bool (*dir_needs_close)(struct cifsFileInfo *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) long (*fallocate)(struct file *, struct cifs_tcon *, int, loff_t,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) loff_t);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) /* init transform request - used for encryption for now */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) int (*init_transform_rq)(struct TCP_Server_Info *, int num_rqst,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) struct smb_rqst *, struct smb_rqst *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) int (*is_transform_hdr)(void *buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) int (*receive_transform)(struct TCP_Server_Info *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) struct mid_q_entry **, char **, int *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) enum securityEnum (*select_sectype)(struct TCP_Server_Info *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) enum securityEnum);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) int (*next_header)(char *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) /* ioctl passthrough for query_info */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) int (*ioctl_query_info)(const unsigned int xid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) struct cifs_tcon *tcon,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) struct cifs_sb_info *cifs_sb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) __le16 *path, int is_dir,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) unsigned long p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) /* make unix special files (block, char, fifo, socket) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) int (*make_node)(unsigned int xid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) struct inode *inode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) struct dentry *dentry,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) struct cifs_tcon *tcon,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) char *full_path,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) umode_t mode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) dev_t device_number);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) /* version specific fiemap implementation */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) int (*fiemap)(struct cifs_tcon *tcon, struct cifsFileInfo *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) struct fiemap_extent_info *, u64, u64);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) /* version specific llseek implementation */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) loff_t (*llseek)(struct file *, struct cifs_tcon *, loff_t, int);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) /* Check for STATUS_IO_TIMEOUT */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) bool (*is_status_io_timeout)(char *buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) struct smb_version_values {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) char *version_string;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) __u16 protocol_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) __u32 req_capabilities;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) __u32 large_lock_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) __u32 exclusive_lock_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) __u32 shared_lock_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) __u32 unlock_lock_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) size_t header_preamble_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) size_t header_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) size_t max_header_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) size_t read_rsp_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) __le16 lock_cmd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) unsigned int cap_unix;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) unsigned int cap_nt_find;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) unsigned int cap_large_files;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) __u16 signing_enabled;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) __u16 signing_required;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) size_t create_lease_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) #define HEADER_SIZE(server) (server->vals->header_size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) #define MAX_HEADER_SIZE(server) (server->vals->max_header_size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) struct smb_vol {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) char *username;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) char *password;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) char *domainname;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) char *UNC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) char *iocharset; /* local code page for mapping to and from Unicode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) char source_rfc1001_name[RFC1001_NAME_LEN_WITH_NULL]; /* clnt nb name */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) char target_rfc1001_name[RFC1001_NAME_LEN_WITH_NULL]; /* srvr nb name */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) kuid_t cred_uid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) kuid_t linux_uid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) kgid_t linux_gid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) kuid_t backupuid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) kgid_t backupgid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) umode_t file_mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) umode_t dir_mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) enum securityEnum sectype; /* sectype requested via mnt opts */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) bool sign; /* was signing requested via mnt opts? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) bool ignore_signature:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) bool retry:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) bool intr:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) bool setuids:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) bool setuidfromacl:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) bool override_uid:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) bool override_gid:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) bool dynperm:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) bool noperm:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) bool nodelete:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) bool mode_ace:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) bool no_psx_acl:1; /* set if posix acl support should be disabled */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) bool cifs_acl:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) bool backupuid_specified; /* mount option backupuid is specified */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) bool backupgid_specified; /* mount option backupgid is specified */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) bool no_xattr:1; /* set if xattr (EA) support should be disabled*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) bool server_ino:1; /* use inode numbers from server ie UniqueId */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) bool direct_io:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) bool strict_io:1; /* strict cache behavior */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) bool cache_ro:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) bool cache_rw:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) bool remap:1; /* set to remap seven reserved chars in filenames */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) bool sfu_remap:1; /* remap seven reserved chars ala SFU */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) bool posix_paths:1; /* unset to not ask for posix pathnames. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) bool no_linux_ext:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) bool linux_ext:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) bool sfu_emul:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) bool nullauth:1; /* attempt to authenticate with null user */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) bool nocase:1; /* request case insensitive filenames */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) bool nobrl:1; /* disable sending byte range locks to srv */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) bool nohandlecache:1; /* disable caching dir handles if srvr probs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) bool mand_lock:1; /* send mandatory not posix byte range lock reqs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) bool seal:1; /* request transport encryption on share */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) bool nodfs:1; /* Do not request DFS, even if available */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) bool local_lease:1; /* check leases only on local system, not remote */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) bool noblocksnd:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) bool noautotune:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) bool nostrictsync:1; /* do not force expensive SMBflush on every sync */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) bool no_lease:1; /* disable requesting leases */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) bool fsc:1; /* enable fscache */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) bool mfsymlinks:1; /* use Minshall+French Symlinks */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) bool multiuser:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) bool rwpidforward:1; /* pid forward for read/write operations */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) bool nosharesock:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) bool persistent:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) bool nopersistent:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) bool resilient:1; /* noresilient not required since not fored for CA */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) bool domainauto:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) bool rdma:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) bool multichannel:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) bool use_client_guid:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) /* reuse existing guid for multichannel */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) u8 client_guid[SMB2_CLIENT_GUID_SIZE];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) unsigned int bsize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604) unsigned int rsize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) unsigned int wsize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) unsigned int min_offload;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) bool sockopt_tcp_nodelay:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608) unsigned long actimeo; /* attribute cache timeout (jiffies) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609) struct smb_version_operations *ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) struct smb_version_values *vals;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) char *prepath;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612) struct sockaddr_storage dstaddr; /* destination address */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) struct sockaddr_storage srcaddr; /* allow binding to a local IP */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) struct nls_table *local_nls;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615) unsigned int echo_interval; /* echo interval in secs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616) __u64 snapshot_time; /* needed for timewarp tokens */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617) __u32 handle_timeout; /* persistent and durable handle timeout in ms */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618) unsigned int max_credits; /* smb3 max_credits 10 < credits < 60000 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619) unsigned int max_channels;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) __u16 compression; /* compression algorithm 0xFFFF default 0=disabled */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621) bool rootfs:1; /* if it's a SMB root file system */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) * CIFS superblock mount flags (mnt_cifs_flags) to consider when
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626) * trying to reuse existing superblock for a new mount
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628) #define CIFS_MOUNT_MASK (CIFS_MOUNT_NO_PERM | CIFS_MOUNT_SET_UID | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) CIFS_MOUNT_SERVER_INUM | CIFS_MOUNT_DIRECT_IO | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) CIFS_MOUNT_NO_XATTR | CIFS_MOUNT_MAP_SPECIAL_CHR | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631) CIFS_MOUNT_MAP_SFM_CHR | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632) CIFS_MOUNT_UNX_EMUL | CIFS_MOUNT_NO_BRL | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633) CIFS_MOUNT_CIFS_ACL | CIFS_MOUNT_OVERR_UID | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634) CIFS_MOUNT_OVERR_GID | CIFS_MOUNT_DYNPERM | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635) CIFS_MOUNT_NOPOSIXBRL | CIFS_MOUNT_NOSSYNC | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) CIFS_MOUNT_FSCACHE | CIFS_MOUNT_MF_SYMLINKS | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637) CIFS_MOUNT_MULTIUSER | CIFS_MOUNT_STRICT_IO | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638) CIFS_MOUNT_CIFS_BACKUPUID | CIFS_MOUNT_CIFS_BACKUPGID | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639) CIFS_MOUNT_UID_FROM_ACL | CIFS_MOUNT_NO_HANDLE_CACHE | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640) CIFS_MOUNT_NO_DFS | CIFS_MOUNT_MODE_FROM_SID | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) CIFS_MOUNT_RO_CACHE | CIFS_MOUNT_RW_CACHE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644) * Generic VFS superblock mount flags (s_flags) to consider when
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645) * trying to reuse existing superblock for a new mount
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647) #define CIFS_MS_MASK (SB_RDONLY | SB_MANDLOCK | SB_NOEXEC | SB_NOSUID | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) SB_NODEV | SB_SYNCHRONOUS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650) struct cifs_mnt_data {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651) struct cifs_sb_info *cifs_sb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) struct smb_vol *vol;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653) int flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) static inline unsigned int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) get_rfc1002_length(void *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659) return be32_to_cpu(*((__be32 *)buf)) & 0xffffff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) static inline void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) inc_rfc1001_len(void *buf, int count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665) be32_add_cpu((__be32 *)buf, count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668) struct TCP_Server_Info {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669) struct list_head tcp_ses_list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) struct list_head smb_ses_list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671) int srv_count; /* reference counter */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672) /* 15 character server name + 0x20 16th byte indicating type = srv */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) char server_RFC1001_name[RFC1001_NAME_LEN_WITH_NULL];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674) struct smb_version_operations *ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675) struct smb_version_values *vals;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676) enum statusEnum tcpStatus; /* what we think the status is */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677) char *hostname; /* hostname portion of UNC string */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) struct socket *ssocket;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) struct sockaddr_storage dstaddr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680) struct sockaddr_storage srcaddr; /* locally bind to this IP */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681) #ifdef CONFIG_NET_NS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682) struct net *net;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684) wait_queue_head_t response_q;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685) wait_queue_head_t request_q; /* if more than maxmpx to srvr must block*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686) struct list_head pending_mid_q;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687) bool noblocksnd; /* use blocking sendmsg */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688) bool noautotune; /* do not autotune send buf sizes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689) bool tcp_nodelay;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690) unsigned int credits; /* send no more requests at once */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691) unsigned int max_credits; /* can override large 32000 default at mnt */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692) unsigned int in_flight; /* number of requests on the wire to server */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) unsigned int max_in_flight; /* max number of requests that were on wire */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694) spinlock_t req_lock; /* protect the two values above */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695) struct mutex srv_mutex;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696) struct task_struct *tsk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697) char server_GUID[16];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698) __u16 sec_mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699) bool sign; /* is signing enabled on this connection? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700) bool ignore_signature:1; /* skip validation of signatures in SMB2/3 rsp */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701) bool session_estab; /* mark when very first sess is established */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702) int echo_credits; /* echo reserved slots */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703) int oplock_credits; /* oplock break reserved slots */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 704) bool echoes:1; /* enable echoes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 705) __u8 client_guid[SMB2_CLIENT_GUID_SIZE]; /* Client GUID */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 706) u16 dialect; /* dialect index that server chose */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 707) bool oplocks:1; /* enable oplocks */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 708) unsigned int maxReq; /* Clients should submit no more */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 709) /* than maxReq distinct unanswered SMBs to the server when using */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 710) /* multiplexed reads or writes (for SMB1/CIFS only, not SMB2/SMB3) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 711) unsigned int maxBuf; /* maxBuf specifies the maximum */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 712) /* message size the server can send or receive for non-raw SMBs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 713) /* maxBuf is returned by SMB NegotiateProtocol so maxBuf is only 0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 714) /* when socket is setup (and during reconnect) before NegProt sent */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 715) unsigned int max_rw; /* maxRw specifies the maximum */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 716) /* message size the server can send or receive for */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 717) /* SMB_COM_WRITE_RAW or SMB_COM_READ_RAW. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 718) unsigned int capabilities; /* selective disabling of caps by smb sess */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 719) int timeAdj; /* Adjust for difference in server time zone in sec */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 720) __u64 CurrentMid; /* multiplex id - rotating counter */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 721) char cryptkey[CIFS_CRYPTO_KEY_SIZE]; /* used by ntlm, ntlmv2 etc */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 722) /* 16th byte of RFC1001 workstation name is always null */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 723) char workstation_RFC1001_name[RFC1001_NAME_LEN_WITH_NULL];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 724) __u32 sequence_number; /* for signing, protected by srv_mutex */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 725) __u32 reconnect_instance; /* incremented on each reconnect */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 726) struct session_key session_key;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 727) unsigned long lstrp; /* when we got last response from this server */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 728) struct cifs_secmech secmech; /* crypto sec mech functs, descriptors */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 729) #define CIFS_NEGFLAVOR_LANMAN 0 /* wct == 13, LANMAN */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 730) #define CIFS_NEGFLAVOR_UNENCAP 1 /* wct == 17, but no ext_sec */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 731) #define CIFS_NEGFLAVOR_EXTENDED 2 /* wct == 17, ext_sec bit set */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 732) char negflavor; /* NEGOTIATE response flavor */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 733) /* extended security flavors that server supports */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 734) bool sec_ntlmssp; /* supports NTLMSSP */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 735) bool sec_kerberosu2u; /* supports U2U Kerberos */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 736) bool sec_kerberos; /* supports plain Kerberos */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 737) bool sec_mskerberos; /* supports legacy MS Kerberos */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 738) bool large_buf; /* is current buffer large? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 739) /* use SMBD connection instead of socket */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 740) bool rdma;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 741) /* point to the SMBD connection if RDMA is used instead of socket */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 742) struct smbd_connection *smbd_conn;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 743) struct delayed_work echo; /* echo ping workqueue job */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 744) char *smallbuf; /* pointer to current "small" buffer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 745) char *bigbuf; /* pointer to current "big" buffer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 746) /* Total size of this PDU. Only valid from cifs_demultiplex_thread */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 747) unsigned int pdu_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 748) unsigned int total_read; /* total amount of data read in this pass */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 749) atomic_t in_send; /* requests trying to send */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 750) atomic_t num_waiters; /* blocked waiting to get in sendrecv */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 751) #ifdef CONFIG_CIFS_FSCACHE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 752) struct fscache_cookie *fscache; /* client index cache cookie */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 753) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 754) #ifdef CONFIG_CIFS_STATS2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 755) atomic_t num_cmds[NUMBER_OF_SMB2_COMMANDS]; /* total requests by cmd */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 756) atomic_t smb2slowcmd[NUMBER_OF_SMB2_COMMANDS]; /* count resps > 1 sec */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 757) __u64 time_per_cmd[NUMBER_OF_SMB2_COMMANDS]; /* total time per cmd */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 758) __u32 slowest_cmd[NUMBER_OF_SMB2_COMMANDS];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 759) __u32 fastest_cmd[NUMBER_OF_SMB2_COMMANDS];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 760) #endif /* STATS2 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 761) unsigned int max_read;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 762) unsigned int max_write;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 763) unsigned int min_offload;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 764) __le16 compress_algorithm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 765) __le16 cipher_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 766) /* save initital negprot hash */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 767) __u8 preauth_sha_hash[SMB2_PREAUTH_HASH_SIZE];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 768) bool posix_ext_supported;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 769) struct delayed_work reconnect; /* reconnect workqueue job */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 770) struct mutex reconnect_mutex; /* prevent simultaneous reconnects */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 771) unsigned long echo_interval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 772)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 773) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 774) * Number of targets available for reconnect. The more targets
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 775) * the more tasks have to wait to let the demultiplex thread
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 776) * reconnect.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 777) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 778) int nr_targets;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 779) bool noblockcnt; /* use non-blocking connect() */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 780) bool is_channel; /* if a session channel */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 781) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 782)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 783) struct cifs_credits {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 784) unsigned int value;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 785) unsigned int instance;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 786) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 787)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 788) static inline unsigned int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 789) in_flight(struct TCP_Server_Info *server)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 790) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 791) unsigned int num;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 792) spin_lock(&server->req_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 793) num = server->in_flight;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 794) spin_unlock(&server->req_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 795) return num;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 796) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 797)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 798) static inline bool
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 799) has_credits(struct TCP_Server_Info *server, int *credits, int num_credits)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 800) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 801) int num;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 802) spin_lock(&server->req_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 803) num = *credits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 804) spin_unlock(&server->req_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 805) return num >= num_credits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 806) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 807)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 808) static inline void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 809) add_credits(struct TCP_Server_Info *server, const struct cifs_credits *credits,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 810) const int optype)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 811) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 812) server->ops->add_credits(server, credits, optype);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 813) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 814)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 815) static inline void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 816) add_credits_and_wake_if(struct TCP_Server_Info *server,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 817) const struct cifs_credits *credits, const int optype)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 818) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 819) if (credits->value) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 820) server->ops->add_credits(server, credits, optype);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 821) wake_up(&server->request_q);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 822) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 823) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 824)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 825) static inline void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 826) set_credits(struct TCP_Server_Info *server, const int val)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 827) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 828) server->ops->set_credits(server, val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 829) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 830)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 831) static inline int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 832) adjust_credits(struct TCP_Server_Info *server, struct cifs_credits *credits,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 833) const unsigned int payload_size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 834) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 835) return server->ops->adjust_credits ?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 836) server->ops->adjust_credits(server, credits, payload_size) : 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 837) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 838)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 839) static inline __le64
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 840) get_next_mid64(struct TCP_Server_Info *server)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 841) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 842) return cpu_to_le64(server->ops->get_next_mid(server));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 843) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 844)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 845) static inline __le16
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 846) get_next_mid(struct TCP_Server_Info *server)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 847) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 848) __u16 mid = server->ops->get_next_mid(server);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 849) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 850) * The value in the SMB header should be little endian for easy
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 851) * on-the-wire decoding.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 852) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 853) return cpu_to_le16(mid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 854) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 855)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 856) static inline void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 857) revert_current_mid(struct TCP_Server_Info *server, const unsigned int val)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 858) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 859) if (server->ops->revert_current_mid)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 860) server->ops->revert_current_mid(server, val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 861) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 862)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 863) static inline void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 864) revert_current_mid_from_hdr(struct TCP_Server_Info *server,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 865) const struct smb2_sync_hdr *shdr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 866) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 867) unsigned int num = le16_to_cpu(shdr->CreditCharge);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 868)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 869) return revert_current_mid(server, num > 0 ? num : 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 870) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 871)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 872) static inline __u16
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 873) get_mid(const struct smb_hdr *smb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 874) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 875) return le16_to_cpu(smb->Mid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 876) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 877)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 878) static inline bool
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 879) compare_mid(__u16 mid, const struct smb_hdr *smb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 880) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 881) return mid == le16_to_cpu(smb->Mid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 882) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 883)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 884) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 885) * When the server supports very large reads and writes via POSIX extensions,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 886) * we can allow up to 2^24-1, minus the size of a READ/WRITE_AND_X header, not
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 887) * including the RFC1001 length.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 888) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 889) * Note that this might make for "interesting" allocation problems during
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 890) * writeback however as we have to allocate an array of pointers for the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 891) * pages. A 16M write means ~32kb page array with PAGE_SIZE == 4096.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 892) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 893) * For reads, there is a similar problem as we need to allocate an array
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 894) * of kvecs to handle the receive, though that should only need to be done
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 895) * once.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 896) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 897) #define CIFS_MAX_WSIZE ((1<<24) - 1 - sizeof(WRITE_REQ) + 4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 898) #define CIFS_MAX_RSIZE ((1<<24) - sizeof(READ_RSP) + 4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 899)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 900) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 901) * When the server doesn't allow large posix writes, only allow a rsize/wsize
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 902) * of 2^17-1 minus the size of the call header. That allows for a read or
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 903) * write up to the maximum size described by RFC1002.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 904) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 905) #define CIFS_MAX_RFC1002_WSIZE ((1<<17) - 1 - sizeof(WRITE_REQ) + 4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 906) #define CIFS_MAX_RFC1002_RSIZE ((1<<17) - 1 - sizeof(READ_RSP) + 4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 907)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 908) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 909) * The default wsize is 1M. find_get_pages seems to return a maximum of 256
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 910) * pages in a single call. With PAGE_SIZE == 4k, this means we can fill
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 911) * a single wsize request with a single call.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 912) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 913) #define CIFS_DEFAULT_IOSIZE (1024 * 1024)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 914) #define SMB3_DEFAULT_IOSIZE (4 * 1024 * 1024)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 915)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 916) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 917) * Windows only supports a max of 60kb reads and 65535 byte writes. Default to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 918) * those values when posix extensions aren't in force. In actuality here, we
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 919) * use 65536 to allow for a write that is a multiple of 4k. Most servers seem
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 920) * to be ok with the extra byte even though Windows doesn't send writes that
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 921) * are that large.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 922) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 923) * Citation:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 924) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 925) * https://blogs.msdn.com/b/openspecification/archive/2009/04/10/smb-maximum-transmit-buffer-size-and-performance-tuning.aspx
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 926) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 927) #define CIFS_DEFAULT_NON_POSIX_RSIZE (60 * 1024)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 928) #define CIFS_DEFAULT_NON_POSIX_WSIZE (65536)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 929)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 930) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 931) * Macros to allow the TCP_Server_Info->net field and related code to drop out
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 932) * when CONFIG_NET_NS isn't set.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 933) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 934)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 935) #ifdef CONFIG_NET_NS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 936)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 937) static inline struct net *cifs_net_ns(struct TCP_Server_Info *srv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 938) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 939) return srv->net;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 940) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 941)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 942) static inline void cifs_set_net_ns(struct TCP_Server_Info *srv, struct net *net)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 943) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 944) srv->net = net;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 945) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 946)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 947) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 948)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 949) static inline struct net *cifs_net_ns(struct TCP_Server_Info *srv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 950) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 951) return &init_net;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 952) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 953)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 954) static inline void cifs_set_net_ns(struct TCP_Server_Info *srv, struct net *net)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 955) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 956) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 957)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 958) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 959)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 960) struct cifs_server_iface {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 961) size_t speed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 962) unsigned int rdma_capable : 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 963) unsigned int rss_capable : 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 964) struct sockaddr_storage sockaddr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 965) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 966)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 967) struct cifs_chan {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 968) struct TCP_Server_Info *server;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 969) __u8 signkey[SMB3_SIGN_KEY_SIZE];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 970) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 971)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 972) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 973) * Session structure. One of these for each uid session with a particular host
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 974) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 975) struct cifs_ses {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 976) struct list_head smb_ses_list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 977) struct list_head tcon_list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 978) struct cifs_tcon *tcon_ipc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 979) struct mutex session_mutex;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 980) struct TCP_Server_Info *server; /* pointer to server info */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 981) int ses_count; /* reference counter */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 982) enum statusEnum status; /* updates protected by GlobalMid_Lock */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 983) unsigned overrideSecFlg; /* if non-zero override global sec flags */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 984) char *serverOS; /* name of operating system underlying server */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 985) char *serverNOS; /* name of network operating system of server */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 986) char *serverDomain; /* security realm of server */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 987) __u64 Suid; /* remote smb uid */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 988) kuid_t linux_uid; /* overriding owner of files on the mount */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 989) kuid_t cred_uid; /* owner of credentials */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 990) unsigned int capabilities;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 991) char serverName[SERVER_NAME_LEN_WITH_NULL];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 992) char *user_name; /* must not be null except during init of sess
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 993) and after mount option parsing we fill it */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 994) char *domainName;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 995) char *password;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 996) struct session_key auth_key;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 997) struct ntlmssp_auth *ntlmssp; /* ciphertext, flags, server challenge */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 998) enum securityEnum sectype; /* what security flavor was specified? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 999) bool sign; /* is signing required? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1000) bool need_reconnect:1; /* connection reset, uid now invalid */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1001) bool domainAuto:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1002) bool binding:1; /* are we binding the session? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1003) __u16 session_flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1004) __u8 smb3signingkey[SMB3_SIGN_KEY_SIZE];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1005) __u8 smb3encryptionkey[SMB3_ENC_DEC_KEY_SIZE];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1006) __u8 smb3decryptionkey[SMB3_ENC_DEC_KEY_SIZE];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1007) __u8 preauth_sha_hash[SMB2_PREAUTH_HASH_SIZE];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1008)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1009) __u8 binding_preauth_sha_hash[SMB2_PREAUTH_HASH_SIZE];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1010)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1011) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1012) * Network interfaces available on the server this session is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1013) * connected to.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1014) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1015) * Other channels can be opened by connecting and binding this
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1016) * session to interfaces from this list.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1017) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1018) * iface_lock should be taken when accessing any of these fields
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1019) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1020) spinlock_t iface_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1021) struct cifs_server_iface *iface_list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1022) size_t iface_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1023) unsigned long iface_last_update; /* jiffies */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1024)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1025) #define CIFS_MAX_CHANNELS 16
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1026) struct cifs_chan chans[CIFS_MAX_CHANNELS];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1027) struct cifs_chan *binding_chan;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1028) size_t chan_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1029) size_t chan_max;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1030) atomic_t chan_seq; /* round robin state */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1031) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1032)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1033) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1034) * When binding a new channel, we need to access the channel which isn't fully
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1035) * established yet.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1036) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1037)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1038) static inline
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1039) struct cifs_chan *cifs_ses_binding_channel(struct cifs_ses *ses)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1040) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1041) if (ses->binding)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1042) return ses->binding_chan;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1043) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1044) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1045) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1046)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1047) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1048) * Returns the server pointer of the session. When binding a new
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1049) * channel this returns the last channel which isn't fully established
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1050) * yet.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1051) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1052) * This function should be use for negprot/sess.setup codepaths. For
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1053) * the other requests see cifs_pick_channel().
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1054) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1055) static inline
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1056) struct TCP_Server_Info *cifs_ses_server(struct cifs_ses *ses)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1057) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1058) if (ses->binding)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1059) return ses->binding_chan->server;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1060) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1061) return ses->server;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1062) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1063)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1064) static inline bool
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1065) cap_unix(struct cifs_ses *ses)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1066) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1067) return ses->server->vals->cap_unix & ses->capabilities;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1068) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1069)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1070) struct cached_fid {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1071) bool is_valid:1; /* Do we have a useable root fid */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1072) bool file_all_info_is_valid:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1073) bool has_lease:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1074) struct kref refcount;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1075) struct cifs_fid *fid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1076) struct mutex fid_mutex;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1077) struct cifs_tcon *tcon;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1078) struct work_struct lease_break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1079) struct smb2_file_all_info file_all_info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1080) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1081)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1082) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1083) * there is one of these for each connection to a resource on a particular
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1084) * session
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1085) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1086) struct cifs_tcon {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1087) struct list_head tcon_list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1088) int tc_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1089) struct list_head rlist; /* reconnect list */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1090) atomic_t num_local_opens; /* num of all opens including disconnected */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1091) atomic_t num_remote_opens; /* num of all network opens on server */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1092) struct list_head openFileList;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1093) spinlock_t open_file_lock; /* protects list above */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1094) struct cifs_ses *ses; /* pointer to session associated with */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1095) char treeName[MAX_TREE_SIZE + 1]; /* UNC name of resource in ASCII */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1096) char *nativeFileSystem;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1097) char *password; /* for share-level security */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1098) __u32 tid; /* The 4 byte tree id */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1099) __u16 Flags; /* optional support bits */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1100) enum statusEnum tidStatus;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1101) atomic_t num_smbs_sent;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1102) union {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1103) struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1104) atomic_t num_writes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1105) atomic_t num_reads;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1106) atomic_t num_flushes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1107) atomic_t num_oplock_brks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1108) atomic_t num_opens;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1109) atomic_t num_closes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1110) atomic_t num_deletes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1111) atomic_t num_mkdirs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1112) atomic_t num_posixopens;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1113) atomic_t num_posixmkdirs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1114) atomic_t num_rmdirs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1115) atomic_t num_renames;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1116) atomic_t num_t2renames;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1117) atomic_t num_ffirst;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1118) atomic_t num_fnext;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1119) atomic_t num_fclose;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1120) atomic_t num_hardlinks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1121) atomic_t num_symlinks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1122) atomic_t num_locks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1123) atomic_t num_acl_get;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1124) atomic_t num_acl_set;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1125) } cifs_stats;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1126) struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1127) atomic_t smb2_com_sent[NUMBER_OF_SMB2_COMMANDS];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1128) atomic_t smb2_com_failed[NUMBER_OF_SMB2_COMMANDS];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1129) } smb2_stats;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1130) } stats;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1131) __u64 bytes_read;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1132) __u64 bytes_written;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1133) spinlock_t stat_lock; /* protects the two fields above */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1134) FILE_SYSTEM_DEVICE_INFO fsDevInfo;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1135) FILE_SYSTEM_ATTRIBUTE_INFO fsAttrInfo; /* ok if fs name truncated */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1136) FILE_SYSTEM_UNIX_INFO fsUnixInfo;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1137) bool ipc:1; /* set if connection to IPC$ share (always also pipe) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1138) bool pipe:1; /* set if connection to pipe share */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1139) bool print:1; /* set if connection to printer share */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1140) bool retry:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1141) bool nocase:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1142) bool nohandlecache:1; /* if strange server resource prob can turn off */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1143) bool nodelete:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1144) bool seal:1; /* transport encryption for this mounted share */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1145) bool unix_ext:1; /* if false disable Linux extensions to CIFS protocol
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1146) for this mount even if server would support */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1147) bool posix_extensions; /* if true SMB3.11 posix extensions enabled */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1148) bool local_lease:1; /* check leases (only) on local system not remote */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1149) bool broken_posix_open; /* e.g. Samba server versions < 3.3.2, 3.2.9 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1150) bool broken_sparse_sup; /* if server or share does not support sparse */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1151) bool need_reconnect:1; /* connection reset, tid now invalid */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1152) bool need_reopen_files:1; /* need to reopen tcon file handles */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1153) bool use_resilient:1; /* use resilient instead of durable handles */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1154) bool use_persistent:1; /* use persistent instead of durable handles */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1155) bool no_lease:1; /* Do not request leases on files or directories */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1156) __le32 capabilities;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1157) __u32 share_flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1158) __u32 maximal_access;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1159) __u32 vol_serial_number;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1160) __le64 vol_create_time;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1161) __u64 snapshot_time; /* for timewarp tokens - timestamp of snapshot */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1162) __u32 handle_timeout; /* persistent and durable handle timeout in ms */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1163) __u32 ss_flags; /* sector size flags */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1164) __u32 perf_sector_size; /* best sector size for perf */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1165) __u32 max_chunks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1166) __u32 max_bytes_chunk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1167) __u32 max_bytes_copy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1168) #ifdef CONFIG_CIFS_FSCACHE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1169) u64 resource_id; /* server resource id */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1170) struct fscache_cookie *fscache; /* cookie for share */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1171) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1172) struct list_head pending_opens; /* list of incomplete opens */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1173) struct cached_fid crfid; /* Cached root fid */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1174) /* BB add field for back pointer to sb struct(s)? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1175) #ifdef CONFIG_CIFS_DFS_UPCALL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1176) char *dfs_path;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1177) int remap:2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1178) struct list_head ulist; /* cache update list */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1179) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1180) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1181)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1182) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1183) * This is a refcounted and timestamped container for a tcon pointer. The
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1184) * container holds a tcon reference. It is considered safe to free one of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1185) * these when the tl_count goes to 0. The tl_time is the time of the last
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1186) * "get" on the container.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1187) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1188) struct tcon_link {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1189) struct rb_node tl_rbnode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1190) kuid_t tl_uid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1191) unsigned long tl_flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1192) #define TCON_LINK_MASTER 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1193) #define TCON_LINK_PENDING 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1194) #define TCON_LINK_IN_TREE 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1195) unsigned long tl_time;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1196) atomic_t tl_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1197) struct cifs_tcon *tl_tcon;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1198) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1199)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1200) extern struct tcon_link *cifs_sb_tlink(struct cifs_sb_info *cifs_sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1201) extern void smb3_free_compound_rqst(int num_rqst, struct smb_rqst *rqst);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1202)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1203) static inline struct cifs_tcon *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1204) tlink_tcon(struct tcon_link *tlink)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1205) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1206) return tlink->tl_tcon;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1207) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1208)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1209) static inline struct tcon_link *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1210) cifs_sb_master_tlink(struct cifs_sb_info *cifs_sb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1211) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1212) return cifs_sb->master_tlink;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1213) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1214)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1215) extern void cifs_put_tlink(struct tcon_link *tlink);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1216)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1217) static inline struct tcon_link *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1218) cifs_get_tlink(struct tcon_link *tlink)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1219) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1220) if (tlink && !IS_ERR(tlink))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1221) atomic_inc(&tlink->tl_count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1222) return tlink;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1223) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1224)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1225) /* This function is always expected to succeed */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1226) extern struct cifs_tcon *cifs_sb_master_tcon(struct cifs_sb_info *cifs_sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1227)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1228) #define CIFS_OPLOCK_NO_CHANGE 0xfe
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1229)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1230) struct cifs_pending_open {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1231) struct list_head olist;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1232) struct tcon_link *tlink;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1233) __u8 lease_key[16];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1234) __u32 oplock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1235) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1236)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1237) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1238) * This info hangs off the cifsFileInfo structure, pointed to by llist.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1239) * This is used to track byte stream locks on the file
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1240) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1241) struct cifsLockInfo {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1242) struct list_head llist; /* pointer to next cifsLockInfo */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1243) struct list_head blist; /* pointer to locks blocked on this */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1244) wait_queue_head_t block_q;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1245) __u64 offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1246) __u64 length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1247) __u32 pid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1248) __u16 type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1249) __u16 flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1250) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1251)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1252) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1253) * One of these for each open instance of a file
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1254) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1255) struct cifs_search_info {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1256) loff_t index_of_last_entry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1257) __u16 entries_in_buffer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1258) __u16 info_level;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1259) __u32 resume_key;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1260) char *ntwrk_buf_start;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1261) char *srch_entries_start;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1262) char *last_entry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1263) const char *presume_name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1264) unsigned int resume_name_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1265) bool endOfSearch:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1266) bool emptyDir:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1267) bool unicode:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1268) bool smallBuf:1; /* so we know which buf_release function to call */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1269) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1270)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1271) #define ACL_NO_MODE ((umode_t)(-1))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1272) struct cifs_open_parms {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1273) struct cifs_tcon *tcon;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1274) struct cifs_sb_info *cifs_sb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1275) int disposition;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1276) int desired_access;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1277) int create_options;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1278) const char *path;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1279) struct cifs_fid *fid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1280) umode_t mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1281) bool reconnect:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1282) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1283)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1284) struct cifs_fid {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1285) __u16 netfid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1286) __u64 persistent_fid; /* persist file id for smb2 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1287) __u64 volatile_fid; /* volatile file id for smb2 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1288) __u8 lease_key[SMB2_LEASE_KEY_SIZE]; /* lease key for smb2 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1289) __u8 create_guid[16];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1290) __u32 access;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1291) struct cifs_pending_open *pending_open;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1292) unsigned int epoch;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1293) #ifdef CONFIG_CIFS_DEBUG2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1294) __u64 mid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1295) #endif /* CIFS_DEBUG2 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1296) bool purge_cache;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1297) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1298)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1299) struct cifs_fid_locks {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1300) struct list_head llist;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1301) struct cifsFileInfo *cfile; /* fid that owns locks */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1302) struct list_head locks; /* locks held by fid above */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1303) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1304)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1305) struct cifsFileInfo {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1306) /* following two lists are protected by tcon->open_file_lock */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1307) struct list_head tlist; /* pointer to next fid owned by tcon */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1308) struct list_head flist; /* next fid (file instance) for this inode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1309) /* lock list below protected by cifsi->lock_sem */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1310) struct cifs_fid_locks *llist; /* brlocks held by this fid */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1311) kuid_t uid; /* allows finding which FileInfo structure */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1312) __u32 pid; /* process id who opened file */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1313) struct cifs_fid fid; /* file id from remote */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1314) struct list_head rlist; /* reconnect list */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1315) /* BB add lock scope info here if needed */ ;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1316) /* lock scope id (0 if none) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1317) struct dentry *dentry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1318) struct tcon_link *tlink;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1319) unsigned int f_flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1320) bool invalidHandle:1; /* file closed via session abend */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1321) bool swapfile:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1322) bool oplock_break_cancelled:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1323) unsigned int oplock_epoch; /* epoch from the lease break */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1324) __u32 oplock_level; /* oplock/lease level from the lease break */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1325) int count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1326) spinlock_t file_info_lock; /* protects four flag/count fields above */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1327) struct mutex fh_mutex; /* prevents reopen race after dead ses*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1328) struct cifs_search_info srch_inf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1329) struct work_struct oplock_break; /* work for oplock breaks */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1330) struct work_struct put; /* work for the final part of _put */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1331) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1332)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1333) struct cifs_io_parms {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1334) __u16 netfid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1335) __u64 persistent_fid; /* persist file id for smb2 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1336) __u64 volatile_fid; /* volatile file id for smb2 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1337) __u32 pid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1338) __u64 offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1339) unsigned int length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1340) struct cifs_tcon *tcon;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1341) struct TCP_Server_Info *server;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1342) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1343)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1344) struct cifs_aio_ctx {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1345) struct kref refcount;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1346) struct list_head list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1347) struct mutex aio_mutex;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1348) struct completion done;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1349) struct iov_iter iter;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1350) struct kiocb *iocb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1351) struct cifsFileInfo *cfile;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1352) struct bio_vec *bv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1353) loff_t pos;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1354) unsigned int npages;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1355) ssize_t rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1356) unsigned int len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1357) unsigned int total_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1358) bool should_dirty;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1359) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1360) * Indicates if this aio_ctx is for direct_io,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1361) * If yes, iter is a copy of the user passed iov_iter
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1362) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1363) bool direct_io;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1364) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1365)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1366) struct cifs_readdata;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1367)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1368) /* asynchronous read support */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1369) struct cifs_readdata {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1370) struct kref refcount;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1371) struct list_head list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1372) struct completion done;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1373) struct cifsFileInfo *cfile;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1374) struct address_space *mapping;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1375) struct cifs_aio_ctx *ctx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1376) __u64 offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1377) unsigned int bytes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1378) unsigned int got_bytes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1379) pid_t pid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1380) int result;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1381) struct work_struct work;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1382) int (*read_into_pages)(struct TCP_Server_Info *server,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1383) struct cifs_readdata *rdata,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1384) unsigned int len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1385) int (*copy_into_pages)(struct TCP_Server_Info *server,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1386) struct cifs_readdata *rdata,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1387) struct iov_iter *iter);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1388) struct kvec iov[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1389) struct TCP_Server_Info *server;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1390) #ifdef CONFIG_CIFS_SMB_DIRECT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1391) struct smbd_mr *mr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1392) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1393) unsigned int pagesz;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1394) unsigned int page_offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1395) unsigned int tailsz;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1396) struct cifs_credits credits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1397) unsigned int nr_pages;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1398) struct page **pages;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1399) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1400)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1401) struct cifs_writedata;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1402)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1403) /* asynchronous write support */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1404) struct cifs_writedata {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1405) struct kref refcount;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1406) struct list_head list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1407) struct completion done;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1408) enum writeback_sync_modes sync_mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1409) struct work_struct work;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1410) struct cifsFileInfo *cfile;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1411) struct cifs_aio_ctx *ctx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1412) __u64 offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1413) pid_t pid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1414) unsigned int bytes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1415) int result;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1416) struct TCP_Server_Info *server;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1417) #ifdef CONFIG_CIFS_SMB_DIRECT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1418) struct smbd_mr *mr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1419) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1420) unsigned int pagesz;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1421) unsigned int page_offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1422) unsigned int tailsz;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1423) struct cifs_credits credits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1424) unsigned int nr_pages;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1425) struct page **pages;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1426) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1427)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1428) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1429) * Take a reference on the file private data. Must be called with
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1430) * cfile->file_info_lock held.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1431) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1432) static inline void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1433) cifsFileInfo_get_locked(struct cifsFileInfo *cifs_file)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1434) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1435) ++cifs_file->count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1436) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1437)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1438) struct cifsFileInfo *cifsFileInfo_get(struct cifsFileInfo *cifs_file);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1439) void _cifsFileInfo_put(struct cifsFileInfo *cifs_file, bool wait_oplock_hdlr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1440) bool offload);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1441) void cifsFileInfo_put(struct cifsFileInfo *cifs_file);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1442)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1443) #define CIFS_CACHE_READ_FLG 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1444) #define CIFS_CACHE_HANDLE_FLG 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1445) #define CIFS_CACHE_RH_FLG (CIFS_CACHE_READ_FLG | CIFS_CACHE_HANDLE_FLG)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1446) #define CIFS_CACHE_WRITE_FLG 4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1447) #define CIFS_CACHE_RW_FLG (CIFS_CACHE_READ_FLG | CIFS_CACHE_WRITE_FLG)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1448) #define CIFS_CACHE_RHW_FLG (CIFS_CACHE_RW_FLG | CIFS_CACHE_HANDLE_FLG)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1449)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1450) #define CIFS_CACHE_READ(cinode) ((cinode->oplock & CIFS_CACHE_READ_FLG) || (CIFS_SB(cinode->vfs_inode.i_sb)->mnt_cifs_flags & CIFS_MOUNT_RO_CACHE))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1451) #define CIFS_CACHE_HANDLE(cinode) (cinode->oplock & CIFS_CACHE_HANDLE_FLG)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1452) #define CIFS_CACHE_WRITE(cinode) ((cinode->oplock & CIFS_CACHE_WRITE_FLG) || (CIFS_SB(cinode->vfs_inode.i_sb)->mnt_cifs_flags & CIFS_MOUNT_RW_CACHE))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1453)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1454) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1455) * One of these for each file inode
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1456) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1457)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1458) struct cifsInodeInfo {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1459) bool can_cache_brlcks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1460) struct list_head llist; /* locks helb by this inode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1461) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1462) * NOTE: Some code paths call down_read(lock_sem) twice, so
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1463) * we must always use cifs_down_write() instead of down_write()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1464) * for this semaphore to avoid deadlocks.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1465) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1466) struct rw_semaphore lock_sem; /* protect the fields above */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1467) /* BB add in lists for dirty pages i.e. write caching info for oplock */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1468) struct list_head openFileList;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1469) spinlock_t open_file_lock; /* protects openFileList */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1470) __u32 cifsAttrs; /* e.g. DOS archive bit, sparse, compressed, system */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1471) unsigned int oplock; /* oplock/lease level we have */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1472) unsigned int epoch; /* used to track lease state changes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1473) #define CIFS_INODE_PENDING_OPLOCK_BREAK (0) /* oplock break in progress */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1474) #define CIFS_INODE_PENDING_WRITERS (1) /* Writes in progress */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1475) #define CIFS_INODE_FLAG_UNUSED (2) /* Unused flag */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1476) #define CIFS_INO_DELETE_PENDING (3) /* delete pending on server */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1477) #define CIFS_INO_INVALID_MAPPING (4) /* pagecache is invalid */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1478) #define CIFS_INO_LOCK (5) /* lock bit for synchronization */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1479) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1480) spinlock_t writers_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1481) unsigned int writers; /* Number of writers on this inode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1482) unsigned long time; /* jiffies of last update of inode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1483) u64 server_eof; /* current file size on server -- protected by i_lock */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1484) u64 uniqueid; /* server inode number */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1485) u64 createtime; /* creation time on server */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1486) __u8 lease_key[SMB2_LEASE_KEY_SIZE]; /* lease key for this inode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1487) #ifdef CONFIG_CIFS_FSCACHE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1488) struct fscache_cookie *fscache;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1489) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1490) struct inode vfs_inode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1491) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1492)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1493) static inline struct cifsInodeInfo *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1494) CIFS_I(struct inode *inode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1495) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1496) return container_of(inode, struct cifsInodeInfo, vfs_inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1497) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1498)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1499) static inline struct cifs_sb_info *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1500) CIFS_SB(struct super_block *sb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1501) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1502) return sb->s_fs_info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1503) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1504)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1505) static inline struct cifs_sb_info *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1506) CIFS_FILE_SB(struct file *file)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1507) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1508) return CIFS_SB(file_inode(file)->i_sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1509) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1510)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1511) static inline char CIFS_DIR_SEP(const struct cifs_sb_info *cifs_sb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1512) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1513) if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_POSIX_PATHS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1514) return '/';
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1515) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1516) return '\\';
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1517) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1518)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1519) static inline void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1520) convert_delimiter(char *path, char delim)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1521) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1522) char old_delim, *pos;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1523)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1524) if (delim == '/')
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1525) old_delim = '\\';
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1526) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1527) old_delim = '/';
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1528)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1529) pos = path;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1530) while ((pos = strchr(pos, old_delim)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1531) *pos = delim;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1532) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1533)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1534) #define cifs_stats_inc atomic_inc
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1535)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1536) static inline void cifs_stats_bytes_written(struct cifs_tcon *tcon,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1537) unsigned int bytes)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1538) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1539) if (bytes) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1540) spin_lock(&tcon->stat_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1541) tcon->bytes_written += bytes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1542) spin_unlock(&tcon->stat_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1543) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1544) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1545)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1546) static inline void cifs_stats_bytes_read(struct cifs_tcon *tcon,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1547) unsigned int bytes)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1548) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1549) spin_lock(&tcon->stat_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1550) tcon->bytes_read += bytes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1551) spin_unlock(&tcon->stat_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1552) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1553)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1554)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1555) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1556) * This is the prototype for the mid receive function. This function is for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1557) * receiving the rest of the SMB frame, starting with the WordCount (which is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1558) * just after the MID in struct smb_hdr). Note:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1559) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1560) * - This will be called by cifsd, with no locks held.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1561) * - The mid will still be on the pending_mid_q.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1562) * - mid->resp_buf will point to the current buffer.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1563) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1564) * Returns zero on a successful receive, or an error. The receive state in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1565) * the TCP_Server_Info will also be updated.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1566) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1567) typedef int (mid_receive_t)(struct TCP_Server_Info *server,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1568) struct mid_q_entry *mid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1569)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1570) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1571) * This is the prototype for the mid callback function. This is called once the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1572) * mid has been received off of the socket. When creating one, take special
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1573) * care to avoid deadlocks. Things to bear in mind:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1574) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1575) * - it will be called by cifsd, with no locks held
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1576) * - the mid will be removed from any lists
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1577) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1578) typedef void (mid_callback_t)(struct mid_q_entry *mid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1579)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1580) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1581) * This is the protopyte for mid handle function. This is called once the mid
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1582) * has been recognized after decryption of the message.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1583) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1584) typedef int (mid_handle_t)(struct TCP_Server_Info *server,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1585) struct mid_q_entry *mid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1586)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1587) /* one of these for every pending CIFS request to the server */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1588) struct mid_q_entry {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1589) struct list_head qhead; /* mids waiting on reply from this server */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1590) struct kref refcount;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1591) struct TCP_Server_Info *server; /* server corresponding to this mid */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1592) __u64 mid; /* multiplex id */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1593) __u16 credits; /* number of credits consumed by this mid */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1594) __u16 credits_received; /* number of credits from the response */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1595) __u32 pid; /* process id */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1596) __u32 sequence_number; /* for CIFS signing */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1597) unsigned long when_alloc; /* when mid was created */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1598) #ifdef CONFIG_CIFS_STATS2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1599) unsigned long when_sent; /* time when smb send finished */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1600) unsigned long when_received; /* when demux complete (taken off wire) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1601) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1602) mid_receive_t *receive; /* call receive callback */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1603) mid_callback_t *callback; /* call completion callback */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1604) mid_handle_t *handle; /* call handle mid callback */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1605) void *callback_data; /* general purpose pointer for callback */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1606) struct task_struct *creator;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1607) void *resp_buf; /* pointer to received SMB header */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1608) unsigned int resp_buf_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1609) int mid_state; /* wish this were enum but can not pass to wait_event */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1610) unsigned int mid_flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1611) __le16 command; /* smb command code */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1612) unsigned int optype; /* operation type */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1613) bool large_buf:1; /* if valid response, is pointer to large buf */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1614) bool multiRsp:1; /* multiple trans2 responses for one request */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1615) bool multiEnd:1; /* both received */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1616) bool decrypted:1; /* decrypted entry */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1617) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1618)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1619) struct close_cancelled_open {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1620) struct cifs_fid fid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1621) struct cifs_tcon *tcon;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1622) struct work_struct work;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1623) __u64 mid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1624) __u16 cmd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1625) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1626)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1627) /* Make code in transport.c a little cleaner by moving
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1628) update of optional stats into function below */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1629) static inline void cifs_in_send_inc(struct TCP_Server_Info *server)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1630) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1631) atomic_inc(&server->in_send);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1632) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1633)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1634) static inline void cifs_in_send_dec(struct TCP_Server_Info *server)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1635) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1636) atomic_dec(&server->in_send);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1637) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1638)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1639) static inline void cifs_num_waiters_inc(struct TCP_Server_Info *server)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1640) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1641) atomic_inc(&server->num_waiters);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1642) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1643)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1644) static inline void cifs_num_waiters_dec(struct TCP_Server_Info *server)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1645) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1646) atomic_dec(&server->num_waiters);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1647) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1648)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1649) #ifdef CONFIG_CIFS_STATS2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1650) static inline void cifs_save_when_sent(struct mid_q_entry *mid)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1651) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1652) mid->when_sent = jiffies;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1653) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1654) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1655) static inline void cifs_save_when_sent(struct mid_q_entry *mid)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1656) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1657) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1658) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1659)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1660) /* for pending dnotify requests */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1661) struct dir_notify_req {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1662) struct list_head lhead;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1663) __le16 Pid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1664) __le16 PidHigh;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1665) __u16 Mid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1666) __u16 Tid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1667) __u16 Uid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1668) __u16 netfid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1669) __u32 filter; /* CompletionFilter (for multishot) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1670) int multishot;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1671) struct file *pfile;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1672) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1673)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1674) struct dfs_info3_param {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1675) int flags; /* DFSREF_REFERRAL_SERVER, DFSREF_STORAGE_SERVER*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1676) int path_consumed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1677) int server_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1678) int ref_flag;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1679) char *path_name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1680) char *node_name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1681) int ttl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1682) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1683)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1684) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1685) * common struct for holding inode info when searching for or updating an
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1686) * inode with new info
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1687) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1688)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1689) #define CIFS_FATTR_DFS_REFERRAL 0x1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1690) #define CIFS_FATTR_DELETE_PENDING 0x2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1691) #define CIFS_FATTR_NEED_REVAL 0x4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1692) #define CIFS_FATTR_INO_COLLISION 0x8
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1693) #define CIFS_FATTR_UNKNOWN_NLINK 0x10
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1694) #define CIFS_FATTR_FAKE_ROOT_INO 0x20
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1695)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1696) struct cifs_fattr {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1697) u32 cf_flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1698) u32 cf_cifsattrs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1699) u64 cf_uniqueid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1700) u64 cf_eof;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1701) u64 cf_bytes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1702) u64 cf_createtime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1703) kuid_t cf_uid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1704) kgid_t cf_gid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1705) umode_t cf_mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1706) dev_t cf_rdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1707) unsigned int cf_nlink;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1708) unsigned int cf_dtype;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1709) struct timespec64 cf_atime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1710) struct timespec64 cf_mtime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1711) struct timespec64 cf_ctime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1712) u32 cf_cifstag;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1713) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1714)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1715) static inline void free_dfs_info_param(struct dfs_info3_param *param)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1716) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1717) if (param) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1718) kfree(param->path_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1719) kfree(param->node_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1720) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1721) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1722)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1723) static inline void free_dfs_info_array(struct dfs_info3_param *param,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1724) int number_of_items)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1725) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1726) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1727) if ((number_of_items == 0) || (param == NULL))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1728) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1729) for (i = 0; i < number_of_items; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1730) kfree(param[i].path_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1731) kfree(param[i].node_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1732) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1733) kfree(param);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1734) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1735)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1736) static inline bool is_interrupt_error(int error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1737) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1738) switch (error) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1739) case -EINTR:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1740) case -ERESTARTSYS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1741) case -ERESTARTNOHAND:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1742) case -ERESTARTNOINTR:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1743) return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1744) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1745) return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1746) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1747)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1748) static inline bool is_retryable_error(int error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1749) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1750) if (is_interrupt_error(error) || error == -EAGAIN)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1751) return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1752) return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1753) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1754)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1755)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1756) /* cifs_get_writable_file() flags */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1757) #define FIND_WR_ANY 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1758) #define FIND_WR_FSUID_ONLY 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1759) #define FIND_WR_WITH_DELETE 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1760)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1761) #define MID_FREE 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1762) #define MID_REQUEST_ALLOCATED 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1763) #define MID_REQUEST_SUBMITTED 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1764) #define MID_RESPONSE_RECEIVED 4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1765) #define MID_RETRY_NEEDED 8 /* session closed while this request out */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1766) #define MID_RESPONSE_MALFORMED 0x10
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1767) #define MID_SHUTDOWN 0x20
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1768)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1769) /* Flags */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1770) #define MID_WAIT_CANCELLED 1 /* Cancelled while waiting for response */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1771) #define MID_DELETED 2 /* Mid has been dequeued/deleted */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1772)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1773) /* Types of response buffer returned from SendReceive2 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1774) #define CIFS_NO_BUFFER 0 /* Response buffer not returned */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1775) #define CIFS_SMALL_BUFFER 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1776) #define CIFS_LARGE_BUFFER 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1777) #define CIFS_IOVEC 4 /* array of response buffers */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1778)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1779) /* Type of Request to SendReceive2 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1780) #define CIFS_BLOCKING_OP 1 /* operation can block */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1781) #define CIFS_NON_BLOCKING 2 /* do not block waiting for credits */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1782) #define CIFS_TIMEOUT_MASK 0x003 /* only one of above set in req */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1783) #define CIFS_LOG_ERROR 0x010 /* log NT STATUS if non-zero */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1784) #define CIFS_LARGE_BUF_OP 0x020 /* large request buffer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1785) #define CIFS_NO_RSP_BUF 0x040 /* no response buffer required */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1786)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1787) /* Type of request operation */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1788) #define CIFS_ECHO_OP 0x080 /* echo request */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1789) #define CIFS_OBREAK_OP 0x0100 /* oplock break request */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1790) #define CIFS_NEG_OP 0x0200 /* negotiate request */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1791) #define CIFS_CP_CREATE_CLOSE_OP 0x0400 /* compound create+close request */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1792) #define CIFS_OP_MASK 0x0780 /* mask request type */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1793)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1794) #define CIFS_HAS_CREDITS 0x0400 /* already has credits */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1795) #define CIFS_TRANSFORM_REQ 0x0800 /* transform request before sending */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1796) #define CIFS_NO_SRV_RSP 0x1000 /* there is no server response */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1797)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1798) /* Security Flags: indicate type of session setup needed */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1799) #define CIFSSEC_MAY_SIGN 0x00001
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1800) #define CIFSSEC_MAY_NTLM 0x00002
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1801) #define CIFSSEC_MAY_NTLMV2 0x00004
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1802) #define CIFSSEC_MAY_KRB5 0x00008
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1803) #ifdef CONFIG_CIFS_WEAK_PW_HASH
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1804) #define CIFSSEC_MAY_LANMAN 0x00010
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1805) #define CIFSSEC_MAY_PLNTXT 0x00020
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1806) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1807) #define CIFSSEC_MAY_LANMAN 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1808) #define CIFSSEC_MAY_PLNTXT 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1809) #endif /* weak passwords */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1810) #define CIFSSEC_MAY_SEAL 0x00040 /* not supported yet */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1811) #define CIFSSEC_MAY_NTLMSSP 0x00080 /* raw ntlmssp with ntlmv2 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1812)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1813) #define CIFSSEC_MUST_SIGN 0x01001
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1814) /* note that only one of the following can be set so the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1815) result of setting MUST flags more than once will be to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1816) require use of the stronger protocol */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1817) #define CIFSSEC_MUST_NTLM 0x02002
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1818) #define CIFSSEC_MUST_NTLMV2 0x04004
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1819) #define CIFSSEC_MUST_KRB5 0x08008
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1820) #ifdef CONFIG_CIFS_WEAK_PW_HASH
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1821) #define CIFSSEC_MUST_LANMAN 0x10010
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1822) #define CIFSSEC_MUST_PLNTXT 0x20020
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1823) #ifdef CONFIG_CIFS_UPCALL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1824) #define CIFSSEC_MASK 0xBF0BF /* allows weak security but also krb5 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1825) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1826) #define CIFSSEC_MASK 0xB70B7 /* current flags supported if weak */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1827) #endif /* UPCALL */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1828) #else /* do not allow weak pw hash */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1829) #define CIFSSEC_MUST_LANMAN 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1830) #define CIFSSEC_MUST_PLNTXT 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1831) #ifdef CONFIG_CIFS_UPCALL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1832) #define CIFSSEC_MASK 0x8F08F /* flags supported if no weak allowed */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1833) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1834) #define CIFSSEC_MASK 0x87087 /* flags supported if no weak allowed */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1835) #endif /* UPCALL */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1836) #endif /* WEAK_PW_HASH */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1837) #define CIFSSEC_MUST_SEAL 0x40040 /* not supported yet */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1838) #define CIFSSEC_MUST_NTLMSSP 0x80080 /* raw ntlmssp with ntlmv2 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1839)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1840) #define CIFSSEC_DEF (CIFSSEC_MAY_SIGN | CIFSSEC_MAY_NTLMV2 | CIFSSEC_MAY_NTLMSSP)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1841) #define CIFSSEC_MAX (CIFSSEC_MUST_SIGN | CIFSSEC_MUST_NTLMV2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1842) #define CIFSSEC_AUTH_MASK (CIFSSEC_MAY_NTLM | CIFSSEC_MAY_NTLMV2 | CIFSSEC_MAY_LANMAN | CIFSSEC_MAY_PLNTXT | CIFSSEC_MAY_KRB5 | CIFSSEC_MAY_NTLMSSP)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1843) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1844) *****************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1845) * All constants go here
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1846) *****************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1847) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1848)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1849) #define UID_HASH (16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1850)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1851) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1852) * Note that ONE module should define _DECLARE_GLOBALS_HERE to cause the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1853) * following to be declared.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1854) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1855)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1856) /****************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1857) * Locking notes. All updates to global variables and lists should be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1858) * protected by spinlocks or semaphores.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1859) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1860) * Spinlocks
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1861) * ---------
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1862) * GlobalMid_Lock protects:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1863) * list operations on pending_mid_q and oplockQ
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1864) * updates to XID counters, multiplex id and SMB sequence numbers
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1865) * list operations on global DnotifyReqList
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1866) * updates to ses->status
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1867) * tcp_ses_lock protects:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1868) * list operations on tcp and SMB session lists
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1869) * tcon->open_file_lock protects the list of open files hanging off the tcon
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1870) * inode->open_file_lock protects the openFileList hanging off the inode
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1871) * cfile->file_info_lock protects counters and fields in cifs file struct
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1872) * f_owner.lock protects certain per file struct operations
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1873) * mapping->page_lock protects certain per page operations
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1874) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1875) * Note that the cifs_tcon.open_file_lock should be taken before
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1876) * not after the cifsInodeInfo.open_file_lock
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1877) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1878) * Semaphores
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1879) * ----------
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1880) * sesSem operations on smb session
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1881) * tconSem operations on tree connection
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1882) * fh_sem file handle reconnection operations
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1883) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1884) ****************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1885)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1886) #ifdef DECLARE_GLOBALS_HERE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1887) #define GLOBAL_EXTERN
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1888) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1889) #define GLOBAL_EXTERN extern
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1890) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1891)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1892) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1893) * the list of TCP_Server_Info structures, ie each of the sockets
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1894) * connecting our client to a distinct server (ip address), is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1895) * chained together by cifs_tcp_ses_list. The list of all our SMB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1896) * sessions (and from that the tree connections) can be found
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1897) * by iterating over cifs_tcp_ses_list
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1898) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1899) GLOBAL_EXTERN struct list_head cifs_tcp_ses_list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1900)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1901) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1902) * This lock protects the cifs_tcp_ses_list, the list of smb sessions per
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1903) * tcp session, and the list of tcon's per smb session. It also protects
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1904) * the reference counters for the server, smb session, and tcon. It also
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1905) * protects some fields in the TCP_Server_Info struct such as dstaddr. Finally,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1906) * changes to the tcon->tidStatus should be done while holding this lock.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1907) * generally the locks should be taken in order tcp_ses_lock before
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1908) * tcon->open_file_lock and that before file->file_info_lock since the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1909) * structure order is cifs_socket-->cifs_ses-->cifs_tcon-->cifs_file
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1910) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1911) GLOBAL_EXTERN spinlock_t cifs_tcp_ses_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1912)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1913) #ifdef CONFIG_CIFS_DNOTIFY_EXPERIMENTAL /* unused temporarily */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1914) /* Outstanding dir notify requests */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1915) GLOBAL_EXTERN struct list_head GlobalDnotifyReqList;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1916) /* DirNotify response queue */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1917) GLOBAL_EXTERN struct list_head GlobalDnotifyRsp_Q;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1918) #endif /* was needed for dnotify, and will be needed for inotify when VFS fix */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1919)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1920) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1921) * Global transaction id (XID) information
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1922) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1923) GLOBAL_EXTERN unsigned int GlobalCurrentXid; /* protected by GlobalMid_Sem */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1924) GLOBAL_EXTERN unsigned int GlobalTotalActiveXid; /* prot by GlobalMid_Sem */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1925) GLOBAL_EXTERN unsigned int GlobalMaxActiveXid; /* prot by GlobalMid_Sem */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1926) GLOBAL_EXTERN spinlock_t GlobalMid_Lock; /* protects above & list operations */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1927) /* on midQ entries */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1928) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1929) * Global counters, updated atomically
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1930) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1931) GLOBAL_EXTERN atomic_t sesInfoAllocCount;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1932) GLOBAL_EXTERN atomic_t tconInfoAllocCount;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1933) GLOBAL_EXTERN atomic_t tcpSesAllocCount;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1934) GLOBAL_EXTERN atomic_t tcpSesReconnectCount;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1935) GLOBAL_EXTERN atomic_t tconInfoReconnectCount;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1936)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1937) /* Various Debug counters */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1938) GLOBAL_EXTERN atomic_t bufAllocCount; /* current number allocated */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1939) #ifdef CONFIG_CIFS_STATS2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1940) GLOBAL_EXTERN atomic_t totBufAllocCount; /* total allocated over all time */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1941) GLOBAL_EXTERN atomic_t totSmBufAllocCount;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1942) extern unsigned int slow_rsp_threshold; /* number of secs before logging */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1943) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1944) GLOBAL_EXTERN atomic_t smBufAllocCount;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1945) GLOBAL_EXTERN atomic_t midCount;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1946)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1947) /* Misc globals */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1948) extern bool enable_oplocks; /* enable or disable oplocks */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1949) extern bool lookupCacheEnabled;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1950) extern unsigned int global_secflags; /* if on, session setup sent
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1951) with more secure ntlmssp2 challenge/resp */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1952) extern unsigned int sign_CIFS_PDUs; /* enable smb packet signing */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1953) extern bool enable_gcm_256; /* allow optional negotiate of strongest signing (aes-gcm-256) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1954) extern bool require_gcm_256; /* require use of strongest signing (aes-gcm-256) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1955) extern bool linuxExtEnabled;/*enable Linux/Unix CIFS extensions*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1956) extern unsigned int CIFSMaxBufSize; /* max size not including hdr */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1957) extern unsigned int cifs_min_rcv; /* min size of big ntwrk buf pool */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1958) extern unsigned int cifs_min_small; /* min size of small buf pool */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1959) extern unsigned int cifs_max_pending; /* MAX requests at once to server*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1960) extern bool disable_legacy_dialects; /* forbid vers=1.0 and vers=2.0 mounts */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1961)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1962) GLOBAL_EXTERN struct rb_root uidtree;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1963) GLOBAL_EXTERN struct rb_root gidtree;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1964) GLOBAL_EXTERN spinlock_t siduidlock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1965) GLOBAL_EXTERN spinlock_t sidgidlock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1966) GLOBAL_EXTERN struct rb_root siduidtree;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1967) GLOBAL_EXTERN struct rb_root sidgidtree;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1968) GLOBAL_EXTERN spinlock_t uidsidlock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1969) GLOBAL_EXTERN spinlock_t gidsidlock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1970)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1971) void cifs_oplock_break(struct work_struct *work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1972) void cifs_queue_oplock_break(struct cifsFileInfo *cfile);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1973)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1974) extern const struct slow_work_ops cifs_oplock_break_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1975) extern struct workqueue_struct *cifsiod_wq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1976) extern struct workqueue_struct *decrypt_wq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1977) extern struct workqueue_struct *fileinfo_put_wq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1978) extern struct workqueue_struct *cifsoplockd_wq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1979) extern __u32 cifs_lock_secret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1980)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1981) extern mempool_t *cifs_mid_poolp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1982)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1983) /* Operations for different SMB versions */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1984) #define SMB1_VERSION_STRING "1.0"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1985) extern struct smb_version_operations smb1_operations;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1986) extern struct smb_version_values smb1_values;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1987) #define SMB20_VERSION_STRING "2.0"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1988) extern struct smb_version_operations smb20_operations;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1989) extern struct smb_version_values smb20_values;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1990) #define SMB21_VERSION_STRING "2.1"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1991) extern struct smb_version_operations smb21_operations;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1992) extern struct smb_version_values smb21_values;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1993) #define SMBDEFAULT_VERSION_STRING "default"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1994) extern struct smb_version_values smbdefault_values;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1995) #define SMB3ANY_VERSION_STRING "3"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1996) extern struct smb_version_values smb3any_values;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1997) #define SMB30_VERSION_STRING "3.0"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1998) extern struct smb_version_operations smb30_operations;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1999) extern struct smb_version_values smb30_values;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2000) #define SMB302_VERSION_STRING "3.02"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2001) #define ALT_SMB302_VERSION_STRING "3.0.2"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2002) /*extern struct smb_version_operations smb302_operations;*/ /* not needed yet */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2003) extern struct smb_version_values smb302_values;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2004) #define SMB311_VERSION_STRING "3.1.1"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2005) #define ALT_SMB311_VERSION_STRING "3.11"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2006) extern struct smb_version_operations smb311_operations;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2007) extern struct smb_version_values smb311_values;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2008)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2009) static inline char *get_security_type_str(enum securityEnum sectype)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2010) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2011) switch (sectype) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2012) case RawNTLMSSP:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2013) return "RawNTLMSSP";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2014) case Kerberos:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2015) return "Kerberos";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2016) case NTLMv2:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2017) return "NTLMv2";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2018) case NTLM:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2019) return "NTLM";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2020) case LANMAN:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2021) return "LANMAN";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2022) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2023) return "Unknown";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2024) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2025) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2026)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2027) static inline bool is_smb1_server(struct TCP_Server_Info *server)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2028) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2029) return strcmp(server->vals->version_string, SMB1_VERSION_STRING) == 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2030) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2031)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2032) static inline bool is_tcon_dfs(struct cifs_tcon *tcon)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2033) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2034) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2035) * For SMB1, see MS-CIFS 2.4.55 SMB_COM_TREE_CONNECT_ANDX (0x75) and MS-CIFS 3.3.4.4 DFS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2036) * Subsystem Notifies That a Share Is a DFS Share.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2037) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2038) * For SMB2+, see MS-SMB2 2.2.10 SMB2 TREE_CONNECT Response and MS-SMB2 3.3.4.14 Server
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2039) * Application Updates a Share.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2040) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2041) if (!tcon || !tcon->ses || !tcon->ses->server)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2042) return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2043) return is_smb1_server(tcon->ses->server) ? tcon->Flags & SMB_SHARE_IS_IN_DFS :
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2044) tcon->share_flags & (SHI1005_FLAGS_DFS | SHI1005_FLAGS_DFS_ROOT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2045) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2046)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2047) #endif /* _CIFS_GLOB_H */
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
3 Commits
0 Branches
0 Tags