diff options
| author | Eric W. Biederman <ebiederm@xmission.com> | 2007-02-14 09:34:14 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-02-14 17:10:00 +0100 |
| commit | 3fbfa98112fc3962c416452a0baf2214381030e6 (patch) | |
| tree | 5a14a9d97ba05f415698de7b4ec5949363c268a6 /security | |
| parent | [PATCH] sysctl: add a parent entry to ctl_table and set the parent entry (diff) | |
| download | linux-3fbfa98112fc3962c416452a0baf2214381030e6.tar.xz linux-3fbfa98112fc3962c416452a0baf2214381030e6.zip | |
[PATCH] sysctl: remove the proc_dir_entry member for the sysctl tables
It isn't needed anymore, all of the users are gone, and all of the ctl_table
initializers have been converted to use explicit names of the fields they are
initializing.
[akpm@osdl.org: NTFS fix]
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Acked-by: Stephen Smalley <sds@tycho.nsa.gov>
Cc: James Morris <jmorris@namei.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'security')
| -rw-r--r-- | security/selinux/hooks.c | 39 |
1 files changed, 37 insertions, 2 deletions
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c index 35eb8de892fc..118ddfb614ee 100644 --- a/security/selinux/hooks.c +++ b/security/selinux/hooks.c @@ -1423,6 +1423,41 @@ static int selinux_capable(struct task_struct *tsk, int cap) return task_has_capability(tsk,cap); } +static int selinux_sysctl_get_sid(ctl_table *table, u16 tclass, u32 *sid) +{ + int buflen, rc; + char *buffer, *path, *end; + + rc = -ENOMEM; + buffer = (char*)__get_free_page(GFP_KERNEL); + if (!buffer) + goto out; + + buflen = PAGE_SIZE; + end = buffer+buflen; + *--end = '\0'; + buflen--; + path = end-1; + *path = '/'; + while (table) { + const char *name = table->procname; + size_t namelen = strlen(name); + buflen -= namelen + 1; + if (buflen < 0) + goto out_free; + end -= namelen; + memcpy(end, name, namelen); + *--end = '/'; + path = end; + table = table->parent; + } + rc = security_genfs_sid("proc", path, tclass, sid); +out_free: + free_page((unsigned long)buffer); +out: + return rc; +} + static int selinux_sysctl(ctl_table *table, int op) { int error = 0; @@ -1437,8 +1472,8 @@ static int selinux_sysctl(ctl_table *table, int op) tsec = current->security; - rc = selinux_proc_get_sid(table->de, (op == 001) ? - SECCLASS_DIR : SECCLASS_FILE, &tsid); + rc = selinux_sysctl_get_sid(table, (op == 0001) ? + SECCLASS_DIR : SECCLASS_FILE, &tsid); if (rc) { /* Default to the well-defined sysctl SID. */ tsid = SECINITSID_SYSCTL; |