^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) /* ATM ioctl handling */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) /* Written 1995-2000 by Werner Almesberger, EPFL LRC/ICA */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) /* 2003 John Levon <levon@movementarian.org> */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) #define pr_fmt(fmt) KBUILD_MODNAME ":%s: " fmt, __func__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/kmod.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/net.h> /* struct socket, struct proto_ops */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/atm.h> /* ATM stuff */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/atmdev.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/atmclip.h> /* CLIP_*ENCAP */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/atmarp.h> /* manifest constants */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/capability.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/sonet.h> /* for ioctls */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/atmsvc.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <linux/atmmpc.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <net/atmclip.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <linux/atmlec.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include <linux/mutex.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include <asm/ioctls.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #include <net/compat.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #include "resources.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #include "signaling.h" /* for WAITING and sigd_attach */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #include "common.h"
^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) static DEFINE_MUTEX(ioctl_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) static LIST_HEAD(ioctl_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) void register_atm_ioctl(struct atm_ioctl *ioctl)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) mutex_lock(&ioctl_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) list_add_tail(&ioctl->list, &ioctl_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) mutex_unlock(&ioctl_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) EXPORT_SYMBOL(register_atm_ioctl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) void deregister_atm_ioctl(struct atm_ioctl *ioctl)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) mutex_lock(&ioctl_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) list_del(&ioctl->list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) mutex_unlock(&ioctl_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) EXPORT_SYMBOL(deregister_atm_ioctl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) static int do_vcc_ioctl(struct socket *sock, unsigned int cmd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) unsigned long arg, int compat)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) struct sock *sk = sock->sk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) struct atm_vcc *vcc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) struct list_head *pos;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) void __user *argp = (void __user *)arg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) void __user *buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) int __user *len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) vcc = ATM_SD(sock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) switch (cmd) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) case SIOCOUTQ:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) if (sock->state != SS_CONNECTED ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) !test_bit(ATM_VF_READY, &vcc->flags)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) error = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) goto done;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) error = put_user(sk->sk_sndbuf - sk_wmem_alloc_get(sk),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) (int __user *)argp) ? -EFAULT : 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) goto done;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) case SIOCINQ:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) struct sk_buff *skb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) if (sock->state != SS_CONNECTED) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) error = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) goto done;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) skb = skb_peek(&sk->sk_receive_queue);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) error = put_user(skb ? skb->len : 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) (int __user *)argp) ? -EFAULT : 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) goto done;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) case ATM_SETSC:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) net_warn_ratelimited("ATM_SETSC is obsolete; used by %s:%d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) current->comm, task_pid_nr(current));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) error = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) goto done;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) case ATMSIGD_CTRL:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) if (!capable(CAP_NET_ADMIN)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) error = -EPERM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) goto done;
^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) * The user/kernel protocol for exchanging signalling
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) * info uses kernel pointers as opaque references,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) * so the holder of the file descriptor can scribble
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) * on the kernel... so we should make sure that we
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) * have the same privileges that /proc/kcore needs
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) if (!capable(CAP_SYS_RAWIO)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) error = -EPERM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) goto done;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) #ifdef CONFIG_COMPAT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) /* WTF? I don't even want to _think_ about making this
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) work for 32-bit userspace. TBH I don't really want
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) to think about it at all. dwmw2. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) if (compat) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) net_warn_ratelimited("32-bit task cannot be atmsigd\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) error = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) goto done;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) error = sigd_attach(vcc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) if (!error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) sock->state = SS_CONNECTED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) goto done;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) case ATM_SETBACKEND:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) case ATM_NEWBACKENDIF:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) atm_backend_t backend;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) error = get_user(backend, (atm_backend_t __user *)argp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) goto done;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) switch (backend) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) case ATM_BACKEND_PPP:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) request_module("pppoatm");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) case ATM_BACKEND_BR2684:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) request_module("br2684");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) case ATMMPC_CTRL:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) case ATMMPC_DATA:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) request_module("mpoa");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) case ATMARPD_CTRL:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) request_module("clip");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) case ATMLEC_CTRL:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) request_module("lec");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) error = -ENOIOCTLCMD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) mutex_lock(&ioctl_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) list_for_each(pos, &ioctl_list) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) struct atm_ioctl *ic = list_entry(pos, struct atm_ioctl, list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) if (try_module_get(ic->owner)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) error = ic->ioctl(sock, cmd, arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) module_put(ic->owner);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) if (error != -ENOIOCTLCMD)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) mutex_unlock(&ioctl_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) if (error != -ENOIOCTLCMD)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) goto done;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) if (cmd == ATM_GETNAMES) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) if (IS_ENABLED(CONFIG_COMPAT) && compat) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) #ifdef CONFIG_COMPAT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) struct compat_atm_iobuf __user *ciobuf = argp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) compat_uptr_t cbuf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) len = &ciobuf->length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) if (get_user(cbuf, &ciobuf->buffer))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) buf = compat_ptr(cbuf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) struct atm_iobuf __user *iobuf = argp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) len = &iobuf->length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) if (get_user(buf, &iobuf->buffer))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) error = atm_getnames(buf, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) int number;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) if (IS_ENABLED(CONFIG_COMPAT) && compat) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) #ifdef CONFIG_COMPAT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) struct compat_atmif_sioc __user *csioc = argp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) compat_uptr_t carg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) len = &csioc->length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) if (get_user(carg, &csioc->arg))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) buf = compat_ptr(carg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) if (get_user(number, &csioc->number))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) struct atmif_sioc __user *sioc = argp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) len = &sioc->length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) if (get_user(buf, &sioc->arg))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) if (get_user(number, &sioc->number))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) error = atm_dev_ioctl(cmd, buf, len, number, compat);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) done:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) return error;
^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) int vcc_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) return do_vcc_ioctl(sock, cmd, arg, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) #ifdef CONFIG_COMPAT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) * FIXME:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) * The compat_ioctl handling is duplicated, using both these conversion
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) * routines and the compat argument to the actual handlers. Both
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) * versions are somewhat incomplete and should be merged, e.g. by
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) * moving the ioctl number translation into the actual handlers and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) * killing the conversion code.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) * -arnd, November 2009
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) #define ATM_GETLINKRATE32 _IOW('a', ATMIOC_ITF+1, struct compat_atmif_sioc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) #define ATM_GETNAMES32 _IOW('a', ATMIOC_ITF+3, struct compat_atm_iobuf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) #define ATM_GETTYPE32 _IOW('a', ATMIOC_ITF+4, struct compat_atmif_sioc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) #define ATM_GETESI32 _IOW('a', ATMIOC_ITF+5, struct compat_atmif_sioc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) #define ATM_GETADDR32 _IOW('a', ATMIOC_ITF+6, struct compat_atmif_sioc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) #define ATM_RSTADDR32 _IOW('a', ATMIOC_ITF+7, struct compat_atmif_sioc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) #define ATM_ADDADDR32 _IOW('a', ATMIOC_ITF+8, struct compat_atmif_sioc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) #define ATM_DELADDR32 _IOW('a', ATMIOC_ITF+9, struct compat_atmif_sioc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) #define ATM_GETCIRANGE32 _IOW('a', ATMIOC_ITF+10, struct compat_atmif_sioc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) #define ATM_SETCIRANGE32 _IOW('a', ATMIOC_ITF+11, struct compat_atmif_sioc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) #define ATM_SETESI32 _IOW('a', ATMIOC_ITF+12, struct compat_atmif_sioc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) #define ATM_SETESIF32 _IOW('a', ATMIOC_ITF+13, struct compat_atmif_sioc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) #define ATM_GETSTAT32 _IOW('a', ATMIOC_SARCOM+0, struct compat_atmif_sioc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) #define ATM_GETSTATZ32 _IOW('a', ATMIOC_SARCOM+1, struct compat_atmif_sioc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) #define ATM_GETLOOP32 _IOW('a', ATMIOC_SARCOM+2, struct compat_atmif_sioc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) #define ATM_SETLOOP32 _IOW('a', ATMIOC_SARCOM+3, struct compat_atmif_sioc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) #define ATM_QUERYLOOP32 _IOW('a', ATMIOC_SARCOM+4, struct compat_atmif_sioc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) static struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) unsigned int cmd32;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) unsigned int cmd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) } atm_ioctl_map[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) { ATM_GETLINKRATE32, ATM_GETLINKRATE },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) { ATM_GETNAMES32, ATM_GETNAMES },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) { ATM_GETTYPE32, ATM_GETTYPE },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) { ATM_GETESI32, ATM_GETESI },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) { ATM_GETADDR32, ATM_GETADDR },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) { ATM_RSTADDR32, ATM_RSTADDR },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) { ATM_ADDADDR32, ATM_ADDADDR },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) { ATM_DELADDR32, ATM_DELADDR },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) { ATM_GETCIRANGE32, ATM_GETCIRANGE },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) { ATM_SETCIRANGE32, ATM_SETCIRANGE },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) { ATM_SETESI32, ATM_SETESI },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) { ATM_SETESIF32, ATM_SETESIF },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) { ATM_GETSTAT32, ATM_GETSTAT },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) { ATM_GETSTATZ32, ATM_GETSTATZ },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) { ATM_GETLOOP32, ATM_GETLOOP },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) { ATM_SETLOOP32, ATM_SETLOOP },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) { ATM_QUERYLOOP32, ATM_QUERYLOOP },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) #define NR_ATM_IOCTL ARRAY_SIZE(atm_ioctl_map)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) static int do_atm_iobuf(struct socket *sock, unsigned int cmd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) unsigned long arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) struct compat_atm_iobuf __user *iobuf32 = compat_ptr(arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) u32 data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) if (get_user(data, &iobuf32->buffer))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) return atm_getnames(&iobuf32->length, compat_ptr(data));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) static int do_atmif_sioc(struct socket *sock, unsigned int cmd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) unsigned long arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) struct compat_atmif_sioc __user *sioc32 = compat_ptr(arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) int number;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) u32 data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) if (get_user(data, &sioc32->arg) || get_user(number, &sioc32->number))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) return atm_dev_ioctl(cmd, compat_ptr(data), &sioc32->length, number, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) static int do_atm_ioctl(struct socket *sock, unsigned int cmd32,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) unsigned long arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) unsigned int cmd = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) switch (cmd32) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) case SONET_GETSTAT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) case SONET_GETSTATZ:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) case SONET_GETDIAG:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) case SONET_SETDIAG:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) case SONET_CLRDIAG:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) case SONET_SETFRAMING:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) case SONET_GETFRAMING:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) case SONET_GETFRSENSE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) return do_atmif_sioc(sock, cmd32, arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) for (i = 0; i < NR_ATM_IOCTL; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) if (cmd32 == atm_ioctl_map[i].cmd32) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) cmd = atm_ioctl_map[i].cmd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) if (i == NR_ATM_IOCTL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) switch (cmd) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) case ATM_GETNAMES:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) return do_atm_iobuf(sock, cmd, arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) case ATM_GETLINKRATE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) case ATM_GETTYPE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) case ATM_GETESI:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) case ATM_GETADDR:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) case ATM_RSTADDR:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) case ATM_ADDADDR:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) case ATM_DELADDR:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) case ATM_GETCIRANGE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) case ATM_SETCIRANGE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) case ATM_SETESI:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) case ATM_SETESIF:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) case ATM_GETSTAT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) case ATM_GETSTATZ:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) case ATM_GETLOOP:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) case ATM_SETLOOP:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) case ATM_QUERYLOOP:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) return do_atmif_sioc(sock, cmd, arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) int vcc_compat_ioctl(struct socket *sock, unsigned int cmd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) unsigned long arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) ret = do_vcc_ioctl(sock, cmd, arg, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) if (ret != -ENOIOCTLCMD)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) return do_atm_ioctl(sock, cmd, arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) #endif
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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