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Diffstat (limited to 'kernel')
-rw-r--r--kernel/auditsc.c68
1 files changed, 21 insertions, 47 deletions
diff --git a/kernel/auditsc.c b/kernel/auditsc.c
index 2e123a8a0d60..b4f7223811fe 100644
--- a/kernel/auditsc.c
+++ b/kernel/auditsc.c
@@ -107,7 +107,7 @@ struct audit_aux_data_ipcctl {
uid_t uid;
gid_t gid;
mode_t mode;
- char *ctx;
+ u32 osid;
};
struct audit_aux_data_socketcall {
@@ -432,11 +432,6 @@ static inline void audit_free_aux(struct audit_context *context)
dput(axi->dentry);
mntput(axi->mnt);
}
- if ( aux->type == AUDIT_IPC ) {
- struct audit_aux_data_ipcctl *axi = (void *)aux;
- if (axi->ctx)
- kfree(axi->ctx);
- }
context->aux = aux->next;
kfree(aux);
@@ -584,7 +579,7 @@ static void audit_log_task_info(struct audit_buffer *ab, struct task_struct *tsk
static void audit_log_exit(struct audit_context *context, struct task_struct *tsk)
{
- int i;
+ int i, call_panic = 0;
struct audit_buffer *ab;
struct audit_aux_data *aux;
const char *tty;
@@ -635,8 +630,20 @@ static void audit_log_exit(struct audit_context *context, struct task_struct *ts
case AUDIT_IPC: {
struct audit_aux_data_ipcctl *axi = (void *)aux;
audit_log_format(ab,
- " qbytes=%lx iuid=%u igid=%u mode=%x obj=%s",
- axi->qbytes, axi->uid, axi->gid, axi->mode, axi->ctx);
+ " qbytes=%lx iuid=%u igid=%u mode=%x",
+ axi->qbytes, axi->uid, axi->gid, axi->mode);
+ if (axi->osid != 0) {
+ char *ctx = NULL;
+ u32 len;
+ if (selinux_ctxid_to_string(
+ axi->osid, &ctx, &len)) {
+ audit_log_format(ab, " obj=%u",
+ axi->osid);
+ call_panic = 1;
+ } else
+ audit_log_format(ab, " obj=%s", ctx);
+ kfree(ctx);
+ }
break; }
case AUDIT_SOCKETCALL: {
@@ -671,7 +678,6 @@ static void audit_log_exit(struct audit_context *context, struct task_struct *ts
}
}
for (i = 0; i < context->name_count; i++) {
- int call_panic = 0;
unsigned long ino = context->names[i].ino;
unsigned long pino = context->names[i].pino;
@@ -708,16 +714,16 @@ static void audit_log_exit(struct audit_context *context, struct task_struct *ts
context->names[i].osid, &ctx, &len)) {
audit_log_format(ab, " obj=%u",
context->names[i].osid);
- call_panic = 1;
+ call_panic = 2;
} else
audit_log_format(ab, " obj=%s", ctx);
kfree(ctx);
}
audit_log_end(ab);
- if (call_panic)
- audit_panic("error converting sid to string");
}
+ if (call_panic)
+ audit_panic("error converting sid to string");
}
/**
@@ -951,7 +957,7 @@ void audit_putname(const char *name)
#endif
}
-void audit_inode_context(int idx, const struct inode *inode)
+static void audit_inode_context(int idx, const struct inode *inode)
{
struct audit_context *context = current->audit_context;
@@ -1141,38 +1147,6 @@ uid_t audit_get_loginuid(struct audit_context *ctx)
return ctx ? ctx->loginuid : -1;
}
-static char *audit_ipc_context(struct kern_ipc_perm *ipcp)
-{
- struct audit_context *context = current->audit_context;
- char *ctx = NULL;
- int len = 0;
-
- if (likely(!context))
- return NULL;
-
- len = security_ipc_getsecurity(ipcp, NULL, 0);
- if (len == -EOPNOTSUPP)
- goto ret;
- if (len < 0)
- goto error_path;
-
- ctx = kmalloc(len, GFP_ATOMIC);
- if (!ctx)
- goto error_path;
-
- len = security_ipc_getsecurity(ipcp, ctx, len);
- if (len < 0)
- goto error_path;
-
- return ctx;
-
-error_path:
- kfree(ctx);
- audit_panic("error in audit_ipc_context");
-ret:
- return NULL;
-}
-
/**
* audit_ipc_perms - record audit data for ipc
* @qbytes: msgq bytes
@@ -1198,7 +1172,7 @@ int audit_ipc_perms(unsigned long qbytes, uid_t uid, gid_t gid, mode_t mode, str
ax->uid = uid;
ax->gid = gid;
ax->mode = mode;
- ax->ctx = audit_ipc_context(ipcp);
+ selinux_get_ipc_sid(ipcp, &ax->osid);
ax->d.type = AUDIT_IPC;
ax->d.next = context->aux;