^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * linux/fs/nfs/proc.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (C) 1992, 1993, 1994 Rick Sladkey
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * OS-independent nfs remote procedure call functions
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * Tuned by Alan Cox <A.Cox@swansea.ac.uk> for >3K buffers
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) * so at last we can have decent(ish) throughput off a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) * Sun server.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) * Coding optimized and cleaned up by Florian La Roche.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) * Note: Error returns are optimized for NFS_OK, which isn't translated via
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) * nfs_stat_to_errno(), but happens to be already the right return code.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) * Also, the code currently doesn't check the size of the packet, when
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) * it decodes the packet.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) * Feel free to fix it and mail me the diffs if it worries you.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) * Completely rewritten to support the new RPC call interface;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) * rewrote and moved the entire XDR stuff to xdr.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) * --Olaf Kirch June 1996
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) * The code below initializes all auto variables explicitly, otherwise
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) * it will fail to work as a module (gcc generates a memset call for an
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) * incomplete struct).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #include <linux/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #include <linux/param.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) #include <linux/time.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #include <linux/mm.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #include <linux/errno.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) #include <linux/string.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) #include <linux/in.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) #include <linux/pagemap.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) #include <linux/sunrpc/clnt.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) #include <linux/nfs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) #include <linux/nfs2.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) #include <linux/nfs_fs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) #include <linux/nfs_page.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) #include <linux/lockd/bind.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) #include <linux/freezer.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) #include "internal.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) #define NFSDBG_FACILITY NFSDBG_PROC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) * Bare-bones access to getattr: this is for nfs_read_super.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) nfs_proc_get_root(struct nfs_server *server, struct nfs_fh *fhandle,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) struct nfs_fsinfo *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) struct nfs_fattr *fattr = info->fattr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) struct nfs2_fsstat fsinfo;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) struct rpc_message msg = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) .rpc_proc = &nfs_procedures[NFSPROC_GETATTR],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) .rpc_argp = fhandle,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) .rpc_resp = fattr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) int status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) dprintk("%s: call getattr\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) nfs_fattr_init(fattr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) status = rpc_call_sync(server->client, &msg, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) /* Retry with default authentication if different */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) if (status && server->nfs_client->cl_rpcclient != server->client)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) status = rpc_call_sync(server->nfs_client->cl_rpcclient, &msg, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) dprintk("%s: reply getattr: %d\n", __func__, status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) if (status)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) dprintk("%s: call statfs\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) msg.rpc_proc = &nfs_procedures[NFSPROC_STATFS];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) msg.rpc_resp = &fsinfo;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) status = rpc_call_sync(server->client, &msg, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) /* Retry with default authentication if different */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) if (status && server->nfs_client->cl_rpcclient != server->client)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) status = rpc_call_sync(server->nfs_client->cl_rpcclient, &msg, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) dprintk("%s: reply statfs: %d\n", __func__, status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) if (status)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) info->rtmax = NFS_MAXDATA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) info->rtpref = fsinfo.tsize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) info->rtmult = fsinfo.bsize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) info->wtmax = NFS_MAXDATA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) info->wtpref = fsinfo.tsize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) info->wtmult = fsinfo.bsize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) info->dtpref = fsinfo.tsize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) info->maxfilesize = 0x7FFFFFFF;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) info->lease_time = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) * One function for each procedure in the NFS protocol.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) nfs_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) struct nfs_fattr *fattr, struct nfs4_label *label,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) struct inode *inode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) struct rpc_message msg = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) .rpc_proc = &nfs_procedures[NFSPROC_GETATTR],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) .rpc_argp = fhandle,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) .rpc_resp = fattr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) int status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) unsigned short task_flags = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) /* Is this is an attribute revalidation, subject to softreval? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) if (inode && (server->flags & NFS_MOUNT_SOFTREVAL))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) task_flags |= RPC_TASK_TIMEOUT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) dprintk("NFS call getattr\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) nfs_fattr_init(fattr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) status = rpc_call_sync(server->client, &msg, task_flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) dprintk("NFS reply getattr: %d\n", status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) nfs_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) struct iattr *sattr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) struct inode *inode = d_inode(dentry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) struct nfs_sattrargs arg = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) .fh = NFS_FH(inode),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) .sattr = sattr
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) struct rpc_message msg = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) .rpc_proc = &nfs_procedures[NFSPROC_SETATTR],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) .rpc_argp = &arg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) .rpc_resp = fattr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) int status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) /* Mask out the non-modebit related stuff from attr->ia_mode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) sattr->ia_mode &= S_IALLUGO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) dprintk("NFS call setattr\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) if (sattr->ia_valid & ATTR_FILE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) msg.rpc_cred = nfs_file_cred(sattr->ia_file);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) nfs_fattr_init(fattr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) if (status == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) nfs_setattr_update_inode(inode, sattr, fattr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) dprintk("NFS reply setattr: %d\n", status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) nfs_proc_lookup(struct inode *dir, struct dentry *dentry,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) struct nfs_fh *fhandle, struct nfs_fattr *fattr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) struct nfs4_label *label)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) struct nfs_diropargs arg = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) .fh = NFS_FH(dir),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) .name = dentry->d_name.name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) .len = dentry->d_name.len
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) struct nfs_diropok res = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) .fh = fhandle,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) .fattr = fattr
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) struct rpc_message msg = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) .rpc_proc = &nfs_procedures[NFSPROC_LOOKUP],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) .rpc_argp = &arg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) .rpc_resp = &res,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) int status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) unsigned short task_flags = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) /* Is this is an attribute revalidation, subject to softreval? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) if (nfs_lookup_is_soft_revalidate(dentry))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) task_flags |= RPC_TASK_TIMEOUT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) dprintk("NFS call lookup %pd2\n", dentry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) nfs_fattr_init(fattr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) status = rpc_call_sync(NFS_CLIENT(dir), &msg, task_flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) dprintk("NFS reply lookup: %d\n", status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) static int nfs_proc_readlink(struct inode *inode, struct page *page,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) unsigned int pgbase, unsigned int pglen)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) struct nfs_readlinkargs args = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) .fh = NFS_FH(inode),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) .pgbase = pgbase,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) .pglen = pglen,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) .pages = &page
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) struct rpc_message msg = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) .rpc_proc = &nfs_procedures[NFSPROC_READLINK],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) .rpc_argp = &args,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) int status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) dprintk("NFS call readlink\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) dprintk("NFS reply readlink: %d\n", status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) struct nfs_createdata {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) struct nfs_createargs arg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) struct nfs_diropok res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) struct nfs_fh fhandle;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) struct nfs_fattr fattr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) static struct nfs_createdata *nfs_alloc_createdata(struct inode *dir,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) struct dentry *dentry, struct iattr *sattr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) struct nfs_createdata *data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) data = kmalloc(sizeof(*data), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) if (data != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) data->arg.fh = NFS_FH(dir);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) data->arg.name = dentry->d_name.name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) data->arg.len = dentry->d_name.len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) data->arg.sattr = sattr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) nfs_fattr_init(&data->fattr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) data->fhandle.size = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) data->res.fh = &data->fhandle;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) data->res.fattr = &data->fattr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) return data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) static void nfs_free_createdata(const struct nfs_createdata *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) kfree(data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) nfs_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) int flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) struct nfs_createdata *data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) struct rpc_message msg = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) .rpc_proc = &nfs_procedures[NFSPROC_CREATE],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) int status = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) dprintk("NFS call create %pd\n", dentry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) data = nfs_alloc_createdata(dir, dentry, sattr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) if (data == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) msg.rpc_argp = &data->arg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) msg.rpc_resp = &data->res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) nfs_mark_for_revalidate(dir);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) if (status == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) status = nfs_instantiate(dentry, data->res.fh, data->res.fattr, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) nfs_free_createdata(data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) dprintk("NFS reply create: %d\n", status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) * In NFSv2, mknod is grafted onto the create call.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) nfs_proc_mknod(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) dev_t rdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) struct nfs_createdata *data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) struct rpc_message msg = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) .rpc_proc = &nfs_procedures[NFSPROC_CREATE],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) umode_t mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) int status = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) dprintk("NFS call mknod %pd\n", dentry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) mode = sattr->ia_mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) if (S_ISFIFO(mode)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) sattr->ia_mode = (mode & ~S_IFMT) | S_IFCHR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) sattr->ia_valid &= ~ATTR_SIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) } else if (S_ISCHR(mode) || S_ISBLK(mode)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) sattr->ia_valid |= ATTR_SIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) sattr->ia_size = new_encode_dev(rdev);/* get out your barf bag */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) data = nfs_alloc_createdata(dir, dentry, sattr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) if (data == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) msg.rpc_argp = &data->arg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) msg.rpc_resp = &data->res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) nfs_mark_for_revalidate(dir);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) if (status == -EINVAL && S_ISFIFO(mode)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) sattr->ia_mode = mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) nfs_fattr_init(data->res.fattr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) if (status == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) status = nfs_instantiate(dentry, data->res.fh, data->res.fattr, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) nfs_free_createdata(data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) dprintk("NFS reply mknod: %d\n", status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) nfs_proc_remove(struct inode *dir, struct dentry *dentry)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) struct nfs_removeargs arg = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) .fh = NFS_FH(dir),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) .name = dentry->d_name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) struct rpc_message msg = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) .rpc_proc = &nfs_procedures[NFSPROC_REMOVE],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) .rpc_argp = &arg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) int status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) dprintk("NFS call remove %pd2\n",dentry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) nfs_mark_for_revalidate(dir);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) dprintk("NFS reply remove: %d\n", status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) nfs_proc_unlink_setup(struct rpc_message *msg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) struct dentry *dentry,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) struct inode *inode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) msg->rpc_proc = &nfs_procedures[NFSPROC_REMOVE];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) static void nfs_proc_unlink_rpc_prepare(struct rpc_task *task, struct nfs_unlinkdata *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) rpc_call_start(task);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) static int nfs_proc_unlink_done(struct rpc_task *task, struct inode *dir)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) nfs_mark_for_revalidate(dir);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) nfs_proc_rename_setup(struct rpc_message *msg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) struct dentry *old_dentry,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) struct dentry *new_dentry)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) msg->rpc_proc = &nfs_procedures[NFSPROC_RENAME];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) static void nfs_proc_rename_rpc_prepare(struct rpc_task *task, struct nfs_renamedata *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) rpc_call_start(task);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) nfs_proc_rename_done(struct rpc_task *task, struct inode *old_dir,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) struct inode *new_dir)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) nfs_mark_for_revalidate(old_dir);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) nfs_mark_for_revalidate(new_dir);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) nfs_proc_link(struct inode *inode, struct inode *dir, const struct qstr *name)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) struct nfs_linkargs arg = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) .fromfh = NFS_FH(inode),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) .tofh = NFS_FH(dir),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) .toname = name->name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) .tolen = name->len
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) struct rpc_message msg = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) .rpc_proc = &nfs_procedures[NFSPROC_LINK],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) .rpc_argp = &arg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) int status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) dprintk("NFS call link %s\n", name->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) nfs_mark_for_revalidate(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) nfs_mark_for_revalidate(dir);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) dprintk("NFS reply link: %d\n", status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) nfs_proc_symlink(struct inode *dir, struct dentry *dentry, struct page *page,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) unsigned int len, struct iattr *sattr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) struct nfs_fh *fh;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) struct nfs_fattr *fattr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) struct nfs_symlinkargs arg = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) .fromfh = NFS_FH(dir),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) .fromname = dentry->d_name.name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) .fromlen = dentry->d_name.len,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) .pages = &page,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) .pathlen = len,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) .sattr = sattr
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) struct rpc_message msg = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) .rpc_proc = &nfs_procedures[NFSPROC_SYMLINK],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) .rpc_argp = &arg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) int status = -ENAMETOOLONG;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) dprintk("NFS call symlink %pd\n", dentry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) if (len > NFS2_MAXPATHLEN)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) fh = nfs_alloc_fhandle();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) fattr = nfs_alloc_fattr();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) status = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) if (fh == NULL || fattr == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) goto out_free;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) nfs_mark_for_revalidate(dir);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) * V2 SYMLINK requests don't return any attributes. Setting the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) * filehandle size to zero indicates to nfs_instantiate that it
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) * should fill in the data with a LOOKUP call on the wire.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) if (status == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) status = nfs_instantiate(dentry, fh, fattr, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) out_free:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) nfs_free_fattr(fattr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) nfs_free_fhandle(fh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) dprintk("NFS reply symlink: %d\n", status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) nfs_proc_mkdir(struct inode *dir, struct dentry *dentry, struct iattr *sattr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) struct nfs_createdata *data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) struct rpc_message msg = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) .rpc_proc = &nfs_procedures[NFSPROC_MKDIR],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) int status = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) dprintk("NFS call mkdir %pd\n", dentry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) data = nfs_alloc_createdata(dir, dentry, sattr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) if (data == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) msg.rpc_argp = &data->arg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) msg.rpc_resp = &data->res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) nfs_mark_for_revalidate(dir);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) if (status == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) status = nfs_instantiate(dentry, data->res.fh, data->res.fattr, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) nfs_free_createdata(data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) dprintk("NFS reply mkdir: %d\n", status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) nfs_proc_rmdir(struct inode *dir, const struct qstr *name)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) struct nfs_diropargs arg = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) .fh = NFS_FH(dir),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) .name = name->name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) .len = name->len
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) struct rpc_message msg = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) .rpc_proc = &nfs_procedures[NFSPROC_RMDIR],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) .rpc_argp = &arg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) int status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) dprintk("NFS call rmdir %s\n", name->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) nfs_mark_for_revalidate(dir);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) dprintk("NFS reply rmdir: %d\n", status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) * The READDIR implementation is somewhat hackish - we pass a temporary
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) * buffer to the encode function, which installs it in the receive
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) * the receive iovec. The decode function just parses the reply to make
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) * sure it is syntactically correct; the entries itself are decoded
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) * from nfs_readdir by calling the decode_entry function directly.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) nfs_proc_readdir(struct dentry *dentry, const struct cred *cred,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) u64 cookie, struct page **pages, unsigned int count, bool plus)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) struct inode *dir = d_inode(dentry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) struct nfs_readdirargs arg = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) .fh = NFS_FH(dir),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) .cookie = cookie,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) .count = count,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) .pages = pages,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) struct rpc_message msg = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) .rpc_proc = &nfs_procedures[NFSPROC_READDIR],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) .rpc_argp = &arg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) .rpc_cred = cred,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) int status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) dprintk("NFS call readdir %d\n", (unsigned int)cookie);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) nfs_invalidate_atime(dir);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) dprintk("NFS reply readdir: %d\n", status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) nfs_proc_statfs(struct nfs_server *server, struct nfs_fh *fhandle,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) struct nfs_fsstat *stat)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) struct nfs2_fsstat fsinfo;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) struct rpc_message msg = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) .rpc_proc = &nfs_procedures[NFSPROC_STATFS],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) .rpc_argp = fhandle,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) .rpc_resp = &fsinfo,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) int status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) dprintk("NFS call statfs\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) nfs_fattr_init(stat->fattr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) status = rpc_call_sync(server->client, &msg, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) dprintk("NFS reply statfs: %d\n", status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) if (status)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) stat->tbytes = (u64)fsinfo.blocks * fsinfo.bsize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) stat->fbytes = (u64)fsinfo.bfree * fsinfo.bsize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) stat->abytes = (u64)fsinfo.bavail * fsinfo.bsize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) stat->tfiles = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) stat->ffiles = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) stat->afiles = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) nfs_proc_fsinfo(struct nfs_server *server, struct nfs_fh *fhandle,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) struct nfs_fsinfo *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) struct nfs2_fsstat fsinfo;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) struct rpc_message msg = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) .rpc_proc = &nfs_procedures[NFSPROC_STATFS],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) .rpc_argp = fhandle,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) .rpc_resp = &fsinfo,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) int status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) dprintk("NFS call fsinfo\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) nfs_fattr_init(info->fattr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) status = rpc_call_sync(server->client, &msg, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) dprintk("NFS reply fsinfo: %d\n", status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) if (status)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) info->rtmax = NFS_MAXDATA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) info->rtpref = fsinfo.tsize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) info->rtmult = fsinfo.bsize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) info->wtmax = NFS_MAXDATA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) info->wtpref = fsinfo.tsize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) info->wtmult = fsinfo.bsize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) info->dtpref = fsinfo.tsize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) info->maxfilesize = 0x7FFFFFFF;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) info->lease_time = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) nfs_proc_pathconf(struct nfs_server *server, struct nfs_fh *fhandle,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) struct nfs_pathconf *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) info->max_link = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) info->max_namelen = NFS2_MAXNAMLEN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) static int nfs_read_done(struct rpc_task *task, struct nfs_pgio_header *hdr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) struct inode *inode = hdr->inode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) nfs_invalidate_atime(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) if (task->tk_status >= 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) nfs_refresh_inode(inode, hdr->res.fattr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604) /* Emulate the eof flag, which isn't normally needed in NFSv2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) * as it is guaranteed to always return the file attributes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) if ((hdr->res.count == 0 && hdr->args.count > 0) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608) hdr->args.offset + hdr->res.count >= hdr->res.fattr->size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609) hdr->res.eof = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) static void nfs_proc_read_setup(struct nfs_pgio_header *hdr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615) struct rpc_message *msg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617) msg->rpc_proc = &nfs_procedures[NFSPROC_READ];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) static int nfs_proc_pgio_rpc_prepare(struct rpc_task *task,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621) struct nfs_pgio_header *hdr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623) rpc_call_start(task);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) static int nfs_write_done(struct rpc_task *task, struct nfs_pgio_header *hdr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) if (task->tk_status >= 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) hdr->res.count = hdr->args.count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631) nfs_writeback_update_inode(hdr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) static void nfs_proc_write_setup(struct nfs_pgio_header *hdr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637) struct rpc_message *msg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638) struct rpc_clnt **clnt)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640) /* Note: NFSv2 ignores @stable and always uses NFS_FILE_SYNC */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) hdr->args.stable = NFS_FILE_SYNC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642) msg->rpc_proc = &nfs_procedures[NFSPROC_WRITE];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645) static void nfs_proc_commit_rpc_prepare(struct rpc_task *task, struct nfs_commit_data *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647) BUG();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651) nfs_proc_commit_setup(struct nfs_commit_data *data, struct rpc_message *msg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) struct rpc_clnt **clnt)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654) BUG();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658) nfs_proc_lock(struct file *filp, int cmd, struct file_lock *fl)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) struct inode *inode = file_inode(filp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) return nlmclnt_proc(NFS_SERVER(inode)->nlm_host, cmd, fl, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665) /* Helper functions for NFS lock bounds checking */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666) #define NFS_LOCK32_OFFSET_MAX ((__s32)0x7fffffffUL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667) static int nfs_lock_check_bounds(const struct file_lock *fl)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669) __s32 start, end;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671) start = (__s32)fl->fl_start;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672) if ((loff_t)start != fl->fl_start)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) goto out_einval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675) if (fl->fl_end != OFFSET_MAX) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676) end = (__s32)fl->fl_end;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677) if ((loff_t)end != fl->fl_end)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) goto out_einval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) } else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680) end = NFS_LOCK32_OFFSET_MAX;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682) if (start < 0 || start > end)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) goto out_einval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685) out_einval:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689) static int nfs_have_delegation(struct inode *inode, fmode_t flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694) static const struct inode_operations nfs_dir_inode_operations = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695) .create = nfs_create,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696) .lookup = nfs_lookup,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697) .link = nfs_link,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698) .unlink = nfs_unlink,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699) .symlink = nfs_symlink,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700) .mkdir = nfs_mkdir,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701) .rmdir = nfs_rmdir,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702) .mknod = nfs_mknod,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703) .rename = nfs_rename,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 704) .permission = nfs_permission,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 705) .getattr = nfs_getattr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 706) .setattr = nfs_setattr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 707) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 708)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 709) static const struct inode_operations nfs_file_inode_operations = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 710) .permission = nfs_permission,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 711) .getattr = nfs_getattr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 712) .setattr = nfs_setattr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 713) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 714)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 715) const struct nfs_rpc_ops nfs_v2_clientops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 716) .version = 2, /* protocol version */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 717) .dentry_ops = &nfs_dentry_operations,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 718) .dir_inode_ops = &nfs_dir_inode_operations,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 719) .file_inode_ops = &nfs_file_inode_operations,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 720) .file_ops = &nfs_file_operations,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 721) .getroot = nfs_proc_get_root,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 722) .submount = nfs_submount,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 723) .try_get_tree = nfs_try_get_tree,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 724) .getattr = nfs_proc_getattr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 725) .setattr = nfs_proc_setattr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 726) .lookup = nfs_proc_lookup,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 727) .access = NULL, /* access */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 728) .readlink = nfs_proc_readlink,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 729) .create = nfs_proc_create,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 730) .remove = nfs_proc_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 731) .unlink_setup = nfs_proc_unlink_setup,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 732) .unlink_rpc_prepare = nfs_proc_unlink_rpc_prepare,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 733) .unlink_done = nfs_proc_unlink_done,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 734) .rename_setup = nfs_proc_rename_setup,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 735) .rename_rpc_prepare = nfs_proc_rename_rpc_prepare,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 736) .rename_done = nfs_proc_rename_done,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 737) .link = nfs_proc_link,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 738) .symlink = nfs_proc_symlink,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 739) .mkdir = nfs_proc_mkdir,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 740) .rmdir = nfs_proc_rmdir,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 741) .readdir = nfs_proc_readdir,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 742) .mknod = nfs_proc_mknod,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 743) .statfs = nfs_proc_statfs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 744) .fsinfo = nfs_proc_fsinfo,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 745) .pathconf = nfs_proc_pathconf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 746) .decode_dirent = nfs2_decode_dirent,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 747) .pgio_rpc_prepare = nfs_proc_pgio_rpc_prepare,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 748) .read_setup = nfs_proc_read_setup,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 749) .read_done = nfs_read_done,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 750) .write_setup = nfs_proc_write_setup,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 751) .write_done = nfs_write_done,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 752) .commit_setup = nfs_proc_commit_setup,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 753) .commit_rpc_prepare = nfs_proc_commit_rpc_prepare,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 754) .lock = nfs_proc_lock,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 755) .lock_check_bounds = nfs_lock_check_bounds,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 756) .close_context = nfs_close_context,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 757) .have_delegation = nfs_have_delegation,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 758) .alloc_client = nfs_alloc_client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 759) .init_client = nfs_init_client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 760) .free_client = nfs_free_client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 761) .create_server = nfs_create_server,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 762) .clone_server = nfs_clone_server,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 763) };
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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