diff options
Diffstat (limited to 'ipc')
| -rw-r--r-- | ipc/msg.c | 82 | ||||
| -rw-r--r-- | ipc/sem.c | 73 | ||||
| -rw-r--r-- | ipc/shm.c | 86 |
3 files changed, 78 insertions, 163 deletions
@@ -26,6 +26,7 @@ #include <linux/sched.h> #include <linux/syscalls.h> #include <linux/audit.h> +#include <linux/seq_file.h> #include <asm/current.h> #include <asm/uaccess.h> #include "util.h" @@ -74,16 +75,16 @@ static struct ipc_ids msg_ids; static void freeque (struct msg_queue *msq, int id); static int newque (key_t key, int msgflg); #ifdef CONFIG_PROC_FS -static int sysvipc_msg_read_proc(char *buffer, char **start, off_t offset, int length, int *eof, void *data); +static int sysvipc_msg_proc_show(struct seq_file *s, void *it); #endif void __init msg_init (void) { ipc_init_ids(&msg_ids,msg_ctlmni); - -#ifdef CONFIG_PROC_FS - create_proc_read_entry("sysvipc/msg", 0, NULL, sysvipc_msg_read_proc, NULL); -#endif + ipc_init_proc_interface("sysvipc/msg", + " key msqid perms cbytes qnum lspid lrpid uid gid cuid cgid stime rtime ctime\n", + &msg_ids, + sysvipc_msg_proc_show); } static int newque (key_t key, int msgflg) @@ -113,6 +114,7 @@ static int newque (key_t key, int msgflg) return -ENOSPC; } + msq->q_id = msg_buildid(id,msq->q_perm.seq); msq->q_stime = msq->q_rtime = 0; msq->q_ctime = get_seconds(); msq->q_cbytes = msq->q_qnum = 0; @@ -123,7 +125,7 @@ static int newque (key_t key, int msgflg) INIT_LIST_HEAD(&msq->q_senders); msg_unlock(msq); - return msg_buildid(id,msq->q_perm.seq); + return msq->q_id; } static inline void ss_add(struct msg_queue* msq, struct msg_sender* mss) @@ -808,55 +810,25 @@ out_unlock: } #ifdef CONFIG_PROC_FS -static int sysvipc_msg_read_proc(char *buffer, char **start, off_t offset, int length, int *eof, void *data) +static int sysvipc_msg_proc_show(struct seq_file *s, void *it) { - off_t pos = 0; - off_t begin = 0; - int i, len = 0; - - down(&msg_ids.sem); - len += sprintf(buffer, " key msqid perms cbytes qnum lspid lrpid uid gid cuid cgid stime rtime ctime\n"); - - for(i = 0; i <= msg_ids.max_id; i++) { - struct msg_queue * msq; - msq = msg_lock(i); - if(msq != NULL) { - len += sprintf(buffer + len, "%10d %10d %4o %10lu %10lu %5u %5u %5u %5u %5u %5u %10lu %10lu %10lu\n", - msq->q_perm.key, - msg_buildid(i,msq->q_perm.seq), - msq->q_perm.mode, - msq->q_cbytes, - msq->q_qnum, - msq->q_lspid, - msq->q_lrpid, - msq->q_perm.uid, - msq->q_perm.gid, - msq->q_perm.cuid, - msq->q_perm.cgid, - msq->q_stime, - msq->q_rtime, - msq->q_ctime); - msg_unlock(msq); - - pos += len; - if(pos < offset) { - len = 0; - begin = pos; - } - if(pos > offset + length) - goto done; - } - - } - *eof = 1; -done: - up(&msg_ids.sem); - *start = buffer + (offset - begin); - len -= (offset - begin); - if(len > length) - len = length; - if(len < 0) - len = 0; - return len; + struct msg_queue *msq = it; + + return seq_printf(s, + "%10d %10d %4o %10lu %10lu %5u %5u %5u %5u %5u %5u %10lu %10lu %10lu\n", + msq->q_perm.key, + msq->q_id, + msq->q_perm.mode, + msq->q_cbytes, + msq->q_qnum, + msq->q_lspid, + msq->q_lrpid, + msq->q_perm.uid, + msq->q_perm.gid, + msq->q_perm.cuid, + msq->q_perm.cgid, + msq->q_stime, + msq->q_rtime, + msq->q_ctime); } #endif @@ -73,6 +73,7 @@ #include <linux/security.h> #include <linux/syscalls.h> #include <linux/audit.h> +#include <linux/seq_file.h> #include <asm/uaccess.h> #include "util.h" @@ -89,7 +90,7 @@ static struct ipc_ids sem_ids; static int newary (key_t, int, int); static void freeary (struct sem_array *sma, int id); #ifdef CONFIG_PROC_FS -static int sysvipc_sem_read_proc(char *buffer, char **start, off_t offset, int length, int *eof, void *data); +static int sysvipc_sem_proc_show(struct seq_file *s, void *it); #endif #define SEMMSL_FAST 256 /* 512 bytes on stack */ @@ -116,10 +117,10 @@ void __init sem_init (void) { used_sems = 0; ipc_init_ids(&sem_ids,sc_semmni); - -#ifdef CONFIG_PROC_FS - create_proc_read_entry("sysvipc/sem", 0, NULL, sysvipc_sem_read_proc, NULL); -#endif + ipc_init_proc_interface("sysvipc/sem", + " key semid perms nsems uid gid cuid cgid otime ctime\n", + &sem_ids, + sysvipc_sem_proc_show); } /* @@ -193,6 +194,7 @@ static int newary (key_t key, int nsems, int semflg) } used_sems += nsems; + sma->sem_id = sem_buildid(id, sma->sem_perm.seq); sma->sem_base = (struct sem *) &sma[1]; /* sma->sem_pending = NULL; */ sma->sem_pending_last = &sma->sem_pending; @@ -201,7 +203,7 @@ static int newary (key_t key, int nsems, int semflg) sma->sem_ctime = get_seconds(); sem_unlock(sma); - return sem_buildid(id, sma->sem_perm.seq); + return sma->sem_id; } asmlinkage long sys_semget (key_t key, int nsems, int semflg) @@ -1328,50 +1330,21 @@ next_entry: } #ifdef CONFIG_PROC_FS -static int sysvipc_sem_read_proc(char *buffer, char **start, off_t offset, int length, int *eof, void *data) +static int sysvipc_sem_proc_show(struct seq_file *s, void *it) { - off_t pos = 0; - off_t begin = 0; - int i, len = 0; - - len += sprintf(buffer, " key semid perms nsems uid gid cuid cgid otime ctime\n"); - down(&sem_ids.sem); - - for(i = 0; i <= sem_ids.max_id; i++) { - struct sem_array *sma; - sma = sem_lock(i); - if(sma) { - len += sprintf(buffer + len, "%10d %10d %4o %10lu %5u %5u %5u %5u %10lu %10lu\n", - sma->sem_perm.key, - sem_buildid(i,sma->sem_perm.seq), - sma->sem_perm.mode, - sma->sem_nsems, - sma->sem_perm.uid, - sma->sem_perm.gid, - sma->sem_perm.cuid, - sma->sem_perm.cgid, - sma->sem_otime, - sma->sem_ctime); - sem_unlock(sma); - - pos += len; - if(pos < offset) { - len = 0; - begin = pos; - } - if(pos > offset + length) - goto done; - } - } - *eof = 1; -done: - up(&sem_ids.sem); - *start = buffer + (offset - begin); - len -= (offset - begin); - if(len > length) - len = length; - if(len < 0) - len = 0; - return len; + struct sem_array *sma = it; + + return seq_printf(s, + "%10d %10d %4o %10lu %5u %5u %5u %5u %10lu %10lu\n", + sma->sem_perm.key, + sma->sem_id, + sma->sem_perm.mode, + sma->sem_nsems, + sma->sem_perm.uid, + sma->sem_perm.gid, + sma->sem_perm.cuid, + sma->sem_perm.cgid, + sma->sem_otime, + sma->sem_ctime); } #endif @@ -23,12 +23,12 @@ #include <linux/init.h> #include <linux/file.h> #include <linux/mman.h> -#include <linux/proc_fs.h> #include <linux/shmem_fs.h> #include <linux/security.h> #include <linux/syscalls.h> #include <linux/audit.h> #include <linux/ptrace.h> +#include <linux/seq_file.h> #include <asm/uaccess.h> @@ -51,7 +51,7 @@ static int newseg (key_t key, int shmflg, size_t size); static void shm_open (struct vm_area_struct *shmd); static void shm_close (struct vm_area_struct *shmd); #ifdef CONFIG_PROC_FS -static int sysvipc_shm_read_proc(char *buffer, char **start, off_t offset, int length, int *eof, void *data); +static int sysvipc_shm_proc_show(struct seq_file *s, void *it); #endif size_t shm_ctlmax = SHMMAX; @@ -63,9 +63,10 @@ static int shm_tot; /* total number of shared memory pages */ void __init shm_init (void) { ipc_init_ids(&shm_ids, 1); -#ifdef CONFIG_PROC_FS - create_proc_read_entry("sysvipc/shm", 0, NULL, sysvipc_shm_read_proc, NULL); -#endif + ipc_init_proc_interface("sysvipc/shm", + " key shmid perms size cpid lpid nattch uid gid cuid cgid atime dtime ctime\n", + &shm_ids, + sysvipc_shm_proc_show); } static inline int shm_checkid(struct shmid_kernel *s, int id) @@ -869,63 +870,32 @@ asmlinkage long sys_shmdt(char __user *shmaddr) } #ifdef CONFIG_PROC_FS -static int sysvipc_shm_read_proc(char *buffer, char **start, off_t offset, int length, int *eof, void *data) +static int sysvipc_shm_proc_show(struct seq_file *s, void *it) { - off_t pos = 0; - off_t begin = 0; - int i, len = 0; - - down(&shm_ids.sem); - len += sprintf(buffer, " key shmid perms size cpid lpid nattch uid gid cuid cgid atime dtime ctime\n"); + struct shmid_kernel *shp = it; + char *format; - for(i = 0; i <= shm_ids.max_id; i++) { - struct shmid_kernel* shp; - - shp = shm_lock(i); - if(shp!=NULL) { #define SMALL_STRING "%10d %10d %4o %10u %5u %5u %5d %5u %5u %5u %5u %10lu %10lu %10lu\n" #define BIG_STRING "%10d %10d %4o %21u %5u %5u %5d %5u %5u %5u %5u %10lu %10lu %10lu\n" - char *format; - if (sizeof(size_t) <= sizeof(int)) - format = SMALL_STRING; - else - format = BIG_STRING; - len += sprintf(buffer + len, format, - shp->shm_perm.key, - shm_buildid(i, shp->shm_perm.seq), - shp->shm_flags, - shp->shm_segsz, - shp->shm_cprid, - shp->shm_lprid, - is_file_hugepages(shp->shm_file) ? (file_count(shp->shm_file) - 1) : shp->shm_nattch, - shp->shm_perm.uid, - shp->shm_perm.gid, - shp->shm_perm.cuid, - shp->shm_perm.cgid, - shp->shm_atim, - shp->shm_dtim, - shp->shm_ctim); - shm_unlock(shp); - - pos += len; - if(pos < offset) { - len = 0; - begin = pos; - } - if(pos > offset + length) - goto done; - } - } - *eof = 1; -done: - up(&shm_ids.sem); - *start = buffer + (offset - begin); - len -= (offset - begin); - if(len > length) - len = length; - if(len < 0) - len = 0; - return len; + if (sizeof(size_t) <= sizeof(int)) + format = SMALL_STRING; + else + format = BIG_STRING; + return seq_printf(s, format, + shp->shm_perm.key, + shp->id, + shp->shm_flags, + shp->shm_segsz, + shp->shm_cprid, + shp->shm_lprid, + is_file_hugepages(shp->shm_file) ? (file_count(shp->shm_file) - 1) : shp->shm_nattch, + shp->shm_perm.uid, + shp->shm_perm.gid, + shp->shm_perm.cuid, + shp->shm_perm.cgid, + shp->shm_atim, + shp->shm_dtim, + shp->shm_ctim); } #endif |
