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authorDustin Kirkland <dustin.kirkland@us.ibm.com>2005-11-03 17:15:16 +0000
committerAl Viro <viro@zeniv.linux.org.uk>2006-03-20 14:08:54 -0500
commit8c8570fb8feef2bc166bee75a85748b25cda22d9 (patch)
treeed783d405ea9d5f3d3ccc57fb56c7b7cb2cdfb82 /ipc/sem.c
parentc8edc80c8b8c397c53f4f659a05b9ea6208029bf (diff)
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[PATCH] Capture selinux subject/object context information.
This patch extends existing audit records with subject/object context information. Audit records associated with filesystem inodes, ipc, and tasks now contain SELinux label information in the field "subj" if the item is performing the action, or in "obj" if the item is the receiver of an action. These labels are collected via hooks in SELinux and appended to the appropriate record in the audit code. This additional information is required for Common Criteria Labeled Security Protection Profile (LSPP). [AV: fixed kmalloc flags use] [folded leak fixes] [folded cleanup from akpm (kfree(NULL)] [folded audit_inode_context() leak fix] [folded akpm's fix for audit_ipc_perm() definition in case of !CONFIG_AUDIT] Signed-off-by: Dustin Kirkland <dustin.kirkland@us.ibm.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'ipc/sem.c')
-rw-r--r--ipc/sem.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/ipc/sem.c b/ipc/sem.c
index 31fd4027d2b..59696a840be 100644
--- a/ipc/sem.c
+++ b/ipc/sem.c
@@ -809,8 +809,6 @@ static int semctl_down(int semid, int semnum, int cmd, int version, union semun
if(cmd == IPC_SET) {
if(copy_semid_from_user (&setbuf, arg.buf, version))
return -EFAULT;
- if ((err = audit_ipc_perms(0, setbuf.uid, setbuf.gid, setbuf.mode)))
- return err;
}
sma = sem_lock(semid);
if(sma==NULL)
@@ -821,7 +819,6 @@ static int semctl_down(int semid, int semnum, int cmd, int version, union semun
goto out_unlock;
}
ipcp = &sma->sem_perm;
-
if (current->euid != ipcp->cuid &&
current->euid != ipcp->uid && !capable(CAP_SYS_ADMIN)) {
err=-EPERM;
@@ -838,6 +835,8 @@ static int semctl_down(int semid, int semnum, int cmd, int version, union semun
err = 0;
break;
case IPC_SET:
+ if ((err = audit_ipc_perms(0, setbuf.uid, setbuf.gid, setbuf.mode, ipcp)))
+ goto out_unlock;
ipcp->uid = setbuf.uid;
ipcp->gid = setbuf.gid;
ipcp->mode = (ipcp->mode & ~S_IRWXUGO)