diff options
Diffstat (limited to 'ipc')
| -rw-r--r-- | ipc/ipc_sysctl.c | 77 | ||||
| -rw-r--r-- | ipc/mq_sysctl.c | 7 |
2 files changed, 3 insertions, 81 deletions
diff --git a/ipc/ipc_sysctl.c b/ipc/ipc_sysctl.c index 7d3704750efc..56410faa4550 100644 --- a/ipc/ipc_sysctl.c +++ b/ipc/ipc_sysctl.c | |||
| @@ -129,136 +129,60 @@ static int proc_ipcauto_dointvec_minmax(ctl_table *table, int write, | |||
| 129 | #define proc_ipcauto_dointvec_minmax NULL | 129 | #define proc_ipcauto_dointvec_minmax NULL |
| 130 | #endif | 130 | #endif |
| 131 | 131 | ||
| 132 | #ifdef CONFIG_SYSCTL_SYSCALL | ||
| 133 | /* The generic sysctl ipc data routine. */ | ||
| 134 | static int sysctl_ipc_data(ctl_table *table, | ||
| 135 | void __user *oldval, size_t __user *oldlenp, | ||
| 136 | void __user *newval, size_t newlen) | ||
| 137 | { | ||
| 138 | size_t len; | ||
| 139 | void *data; | ||
| 140 | |||
| 141 | /* Get out of I don't have a variable */ | ||
| 142 | if (!table->data || !table->maxlen) | ||
| 143 | return -ENOTDIR; | ||
| 144 | |||
| 145 | data = get_ipc(table); | ||
| 146 | if (!data) | ||
| 147 | return -ENOTDIR; | ||
| 148 | |||
| 149 | if (oldval && oldlenp) { | ||
| 150 | if (get_user(len, oldlenp)) | ||
| 151 | return -EFAULT; | ||
| 152 | if (len) { | ||
| 153 | if (len > table->maxlen) | ||
| 154 | len = table->maxlen; | ||
| 155 | if (copy_to_user(oldval, data, len)) | ||
| 156 | return -EFAULT; | ||
| 157 | if (put_user(len, oldlenp)) | ||
| 158 | return -EFAULT; | ||
| 159 | } | ||
| 160 | } | ||
| 161 | |||
| 162 | if (newval && newlen) { | ||
| 163 | if (newlen > table->maxlen) | ||
| 164 | newlen = table->maxlen; | ||
| 165 | |||
| 166 | if (copy_from_user(data, newval, newlen)) | ||
| 167 | return -EFAULT; | ||
| 168 | } | ||
| 169 | return 1; | ||
| 170 | } | ||
| 171 | |||
| 172 | static int sysctl_ipc_registered_data(ctl_table *table, | ||
| 173 | void __user *oldval, size_t __user *oldlenp, | ||
| 174 | void __user *newval, size_t newlen) | ||
| 175 | { | ||
| 176 | int rc; | ||
| 177 | |||
| 178 | rc = sysctl_ipc_data(table, oldval, oldlenp, newval, newlen); | ||
| 179 | |||
| 180 | if (newval && newlen && rc > 0) | ||
| 181 | /* | ||
| 182 | * Tunable has successfully been changed from userland | ||
| 183 | */ | ||
| 184 | unregister_ipcns_notifier(current->nsproxy->ipc_ns); | ||
| 185 | |||
| 186 | return rc; | ||
| 187 | } | ||
| 188 | #else | ||
| 189 | #define sysctl_ipc_data NULL | ||
| 190 | #define sysctl_ipc_registered_data NULL | ||
| 191 | #endif | ||
| 192 | |||
| 193 | static int zero; | 132 | static int zero; |
| 194 | static int one = 1; | 133 | static int one = 1; |
| 195 | 134 | ||
| 196 | static struct ctl_table ipc_kern_table[] = { | 135 | static struct ctl_table ipc_kern_table[] = { |
| 197 | { | 136 | { |
| 198 | .ctl_name = KERN_SHMMAX, | ||
| 199 | .procname = "shmmax", | 137 | .procname = "shmmax", |
| 200 | .data = &init_ipc_ns.shm_ctlmax, | 138 | .data = &init_ipc_ns.shm_ctlmax, |
| 201 | .maxlen = sizeof (init_ipc_ns.shm_ctlmax), | 139 | .maxlen = sizeof (init_ipc_ns.shm_ctlmax), |
| 202 | .mode = 0644, | 140 | .mode = 0644, |
| 203 | .proc_handler = proc_ipc_doulongvec_minmax, | 141 | .proc_handler = proc_ipc_doulongvec_minmax, |
| 204 | .strategy = sysctl_ipc_data, | ||
| 205 | }, | 142 | }, |
| 206 | { | 143 | { |
| 207 | .ctl_name = KERN_SHMALL, | ||
| 208 | .procname = "shmall", | 144 | .procname = "shmall", |
| 209 | .data = &init_ipc_ns.shm_ctlall, | 145 | .data = &init_ipc_ns.shm_ctlall, |
| 210 | .maxlen = sizeof (init_ipc_ns.shm_ctlall), | 146 | .maxlen = sizeof (init_ipc_ns.shm_ctlall), |
| 211 | .mode = 0644, | 147 | .mode = 0644, |
| 212 | .proc_handler = proc_ipc_doulongvec_minmax, | 148 | .proc_handler = proc_ipc_doulongvec_minmax, |
| 213 | .strategy = sysctl_ipc_data, | ||
| 214 | }, | 149 | }, |
| 215 | { | 150 | { |
| 216 | .ctl_name = KERN_SHMMNI, | ||
| 217 | .procname = "shmmni", | 151 | .procname = "shmmni", |
| 218 | .data = &init_ipc_ns.shm_ctlmni, | 152 | .data = &init_ipc_ns.shm_ctlmni, |
| 219 | .maxlen = sizeof (init_ipc_ns.shm_ctlmni), | 153 | .maxlen = sizeof (init_ipc_ns.shm_ctlmni), |
| 220 | .mode = 0644, | 154 | .mode = 0644, |
| 221 | .proc_handler = proc_ipc_dointvec, | 155 | .proc_handler = proc_ipc_dointvec, |
| 222 | .strategy = sysctl_ipc_data, | ||
| 223 | }, | 156 | }, |
| 224 | { | 157 | { |
| 225 | .ctl_name = KERN_MSGMAX, | ||
| 226 | .procname = "msgmax", | 158 | .procname = "msgmax", |
| 227 | .data = &init_ipc_ns.msg_ctlmax, | 159 | .data = &init_ipc_ns.msg_ctlmax, |
| 228 | .maxlen = sizeof (init_ipc_ns.msg_ctlmax), | 160 | .maxlen = sizeof (init_ipc_ns.msg_ctlmax), |
| 229 | .mode = 0644, | 161 | .mode = 0644, |
| 230 | .proc_handler = proc_ipc_dointvec, | 162 | .proc_handler = proc_ipc_dointvec, |
| 231 | .strategy = sysctl_ipc_data, | ||
| 232 | }, | 163 | }, |
| 233 | { | 164 | { |
| 234 | .ctl_name = KERN_MSGMNI, | ||
| 235 | .procname = "msgmni", | 165 | .procname = "msgmni", |
| 236 | .data = &init_ipc_ns.msg_ctlmni, | 166 | .data = &init_ipc_ns.msg_ctlmni, |
| 237 | .maxlen = sizeof (init_ipc_ns.msg_ctlmni), | 167 | .maxlen = sizeof (init_ipc_ns.msg_ctlmni), |
| 238 | .mode = 0644, | 168 | .mode = 0644, |
| 239 | .proc_handler = proc_ipc_callback_dointvec, | 169 | .proc_handler = proc_ipc_callback_dointvec, |
| 240 | .strategy = sysctl_ipc_registered_data, | ||
| 241 | }, | 170 | }, |
| 242 | { | 171 | { |
| 243 | .ctl_name = KERN_MSGMNB, | ||
| 244 | .procname = "msgmnb", | 172 | .procname = "msgmnb", |
| 245 | .data = &init_ipc_ns.msg_ctlmnb, | 173 | .data = &init_ipc_ns.msg_ctlmnb, |
| 246 | .maxlen = sizeof (init_ipc_ns.msg_ctlmnb), | 174 | .maxlen = sizeof (init_ipc_ns.msg_ctlmnb), |
| 247 | .mode = 0644, | 175 | .mode = 0644, |
| 248 | .proc_handler = proc_ipc_dointvec, | 176 | .proc_handler = proc_ipc_dointvec, |
| 249 | .strategy = sysctl_ipc_data, | ||
| 250 | }, | 177 | }, |
| 251 | { | 178 | { |
| 252 | .ctl_name = KERN_SEM, | ||
| 253 | .procname = "sem", | 179 | .procname = "sem", |
| 254 | .data = &init_ipc_ns.sem_ctls, | 180 | .data = &init_ipc_ns.sem_ctls, |
| 255 | .maxlen = 4*sizeof (int), | 181 | .maxlen = 4*sizeof (int), |
| 256 | .mode = 0644, | 182 | .mode = 0644, |
| 257 | .proc_handler = proc_ipc_dointvec, | 183 | .proc_handler = proc_ipc_dointvec, |
| 258 | .strategy = sysctl_ipc_data, | ||
| 259 | }, | 184 | }, |
| 260 | { | 185 | { |
| 261 | .ctl_name = CTL_UNNUMBERED, | ||
| 262 | .procname = "auto_msgmni", | 186 | .procname = "auto_msgmni", |
| 263 | .data = &init_ipc_ns.auto_msgmni, | 187 | .data = &init_ipc_ns.auto_msgmni, |
| 264 | .maxlen = sizeof(int), | 188 | .maxlen = sizeof(int), |
| @@ -272,7 +196,6 @@ static struct ctl_table ipc_kern_table[] = { | |||
| 272 | 196 | ||
| 273 | static struct ctl_table ipc_root_table[] = { | 197 | static struct ctl_table ipc_root_table[] = { |
| 274 | { | 198 | { |
| 275 | .ctl_name = CTL_KERN, | ||
| 276 | .procname = "kernel", | 199 | .procname = "kernel", |
| 277 | .mode = 0555, | 200 | .mode = 0555, |
| 278 | .child = ipc_kern_table, | 201 | .child = ipc_kern_table, |
diff --git a/ipc/mq_sysctl.c b/ipc/mq_sysctl.c index 8a058711fc10..0c09366b96f3 100644 --- a/ipc/mq_sysctl.c +++ b/ipc/mq_sysctl.c | |||
| @@ -88,7 +88,7 @@ static ctl_table mq_sysctls[] = { | |||
| 88 | .extra1 = &msg_maxsize_limit_min, | 88 | .extra1 = &msg_maxsize_limit_min, |
| 89 | .extra2 = &msg_maxsize_limit_max, | 89 | .extra2 = &msg_maxsize_limit_max, |
| 90 | }, | 90 | }, |
| 91 | { .ctl_name = 0 } | 91 | {} |
| 92 | }; | 92 | }; |
| 93 | 93 | ||
| 94 | static ctl_table mq_sysctl_dir[] = { | 94 | static ctl_table mq_sysctl_dir[] = { |
| @@ -97,17 +97,16 @@ static ctl_table mq_sysctl_dir[] = { | |||
| 97 | .mode = 0555, | 97 | .mode = 0555, |
| 98 | .child = mq_sysctls, | 98 | .child = mq_sysctls, |
| 99 | }, | 99 | }, |
| 100 | { .ctl_name = 0 } | 100 | {} |
| 101 | }; | 101 | }; |
| 102 | 102 | ||
| 103 | static ctl_table mq_sysctl_root[] = { | 103 | static ctl_table mq_sysctl_root[] = { |
| 104 | { | 104 | { |
| 105 | .ctl_name = CTL_FS, | ||
| 106 | .procname = "fs", | 105 | .procname = "fs", |
| 107 | .mode = 0555, | 106 | .mode = 0555, |
| 108 | .child = mq_sysctl_dir, | 107 | .child = mq_sysctl_dir, |
| 109 | }, | 108 | }, |
| 110 | { .ctl_name = 0 } | 109 | {} |
| 111 | }; | 110 | }; |
| 112 | 111 | ||
| 113 | struct ctl_table_header *mq_register_sysctl_table(void) | 112 | struct ctl_table_header *mq_register_sysctl_table(void) |
