alpha: fix compile failures with gcc-4.3 (bug #10438)

[pandora-kernel.git] / kernel / audit.c

diff --git a/kernel/audit.c b/kernel/audit.c
index fee9052..e8692a5 100644 (file)
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -156,6 +156,11 @@ struct audit_buffer {
        gfp_t                gfp_mask;
 };
 
+struct audit_reply {
+       int pid;
+       struct sk_buff *skb;
+};
+
 static void audit_set_pid(struct audit_buffer *ab, pid_t pid)
 {
        if (ab) {
@@ -450,7 +455,7 @@ static int audit_prepare_user_tty(pid_t pid, uid_t loginuid, u32 sessionid)
        int err;
 
        read_lock(&tasklist_lock);
-       tsk = find_task_by_pid(pid);
+       tsk = find_task_by_vpid(pid);
        err = -ESRCH;
        if (!tsk)
                goto out;
@@ -528,6 +533,19 @@ nlmsg_failure:                     /* Used by NLMSG_PUT */
        return NULL;
 }
 
+static int audit_send_reply_thread(void *arg)
+{
+       struct audit_reply *reply = (struct audit_reply *)arg;
+
+       mutex_lock(&audit_cmd_mutex);
+       mutex_unlock(&audit_cmd_mutex);
+
+       /* Ignore failure. It'll only happen if the sender goes away,
+          because our timeout is set to infinite. */
+       netlink_unicast(audit_sock, reply->skb, reply->pid, 0);
+       kfree(reply);
+       return 0;
+}
 /**
  * audit_send_reply - send an audit reply message via netlink
  * @pid: process id to send reply to
@@ -544,14 +562,27 @@ nlmsg_failure:                    /* Used by NLMSG_PUT */
 void audit_send_reply(int pid, int seq, int type, int done, int multi,
                      void *payload, int size)
 {
-       struct sk_buff  *skb;
+       struct sk_buff *skb;
+       struct task_struct *tsk;
+       struct audit_reply *reply = kmalloc(sizeof(struct audit_reply),
+                                           GFP_KERNEL);
+
+       if (!reply)
+               return;
+
        skb = audit_make_reply(pid, seq, type, done, multi, payload, size);
        if (!skb)
+               goto out;
+
+       reply->pid = pid;
+       reply->skb = skb;
+
+       tsk = kthread_run(audit_send_reply_thread, reply, "audit_send_reply");
+       if (!IS_ERR(tsk))
                return;
-       /* Ignore failure. It'll only happen if the sender goes away,
-          because our timeout is set to infinite. */
-       netlink_unicast(audit_sock, skb, pid, 0);
-       return;
+       kfree_skb(skb);
+out:
+       kfree(reply);
 }
 
 /*
@@ -727,8 +758,7 @@ static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
 
                                audit_log_format(ab, " msg=");
                                size = nlmsg_len(nlh);
-                               audit_log_n_untrustedstring(ab, size,
-                                                           data);
+                               audit_log_n_untrustedstring(ab, data, size);
                        }
                        audit_set_pid(ab, pid);
                        audit_log_end(ab);
@@ -784,21 +814,21 @@ static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
        case AUDIT_MAKE_EQUIV: {
                void *bufp = data;
                u32 sizes[2];
-               size_t len = nlmsg_len(nlh);
+               size_t msglen = nlmsg_len(nlh);
                char *old, *new;
 
                err = -EINVAL;
-               if (len < 2 * sizeof(u32))
+               if (msglen < 2 * sizeof(u32))
                        break;
                memcpy(sizes, bufp, 2 * sizeof(u32));
                bufp += 2 * sizeof(u32);
-               len -= 2 * sizeof(u32);
-               old = audit_unpack_string(&bufp, &len, sizes[0]);
+               msglen -= 2 * sizeof(u32);
+               old = audit_unpack_string(&bufp, &msglen, sizes[0]);
                if (IS_ERR(old)) {
                        err = PTR_ERR(old);
                        break;
                }
-               new = audit_unpack_string(&bufp, &len, sizes[1]);
+               new = audit_unpack_string(&bufp, &msglen, sizes[1]);
                if (IS_ERR(new)) {
                        err = PTR_ERR(new);
                        kfree(old);
@@ -842,7 +872,7 @@ static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
                struct task_struct *tsk;
 
                read_lock(&tasklist_lock);
-               tsk = find_task_by_pid(pid);
+               tsk = find_task_by_vpid(pid);
                if (!tsk)
                        err = -ESRCH;
                else {
@@ -865,7 +895,7 @@ static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
                if (s->enabled != 0 && s->enabled != 1)
                        return -EINVAL;
                read_lock(&tasklist_lock);
-               tsk = find_task_by_pid(pid);
+               tsk = find_task_by_vpid(pid);
                if (!tsk)
                        err = -ESRCH;
                else {
@@ -1263,7 +1293,7 @@ void audit_log_format(struct audit_buffer *ab, const char *fmt, ...)
  * This function will take the passed buf and convert it into a string of
  * ascii hex digits. The new string is placed onto the skb.
  */
-void audit_log_hex(struct audit_buffer *ab, const unsigned char *buf,
+void audit_log_n_hex(struct audit_buffer *ab, const unsigned char *buf,
                size_t len)
 {
        int i, avail, new_len;
@@ -1299,8 +1329,8 @@ void audit_log_hex(struct audit_buffer *ab, const unsigned char *buf,
  * Format a string of no more than slen characters into the audit buffer,
  * enclosed in quote marks.
  */
-static void audit_log_n_string(struct audit_buffer *ab, size_t slen,
-                              const char *string)
+void audit_log_n_string(struct audit_buffer *ab, const char *string,
+                       size_t slen)
 {
        int avail, new_len;
        unsigned char *ptr;
@@ -1356,13 +1386,13 @@ int audit_string_contains_control(const char *string, size_t len)
  * The caller specifies the number of characters in the string to log, which may
  * or may not be the entire string.
  */
-void audit_log_n_untrustedstring(struct audit_buffer *ab, size_t len,
-                                const char *string)
+void audit_log_n_untrustedstring(struct audit_buffer *ab, const char *string,
+                                size_t len)
 {
        if (audit_string_contains_control(string, len))
-               audit_log_hex(ab, string, len);
+               audit_log_n_hex(ab, string, len);
        else
-               audit_log_n_string(ab, len, string);
+               audit_log_n_string(ab, string, len);
 }
 
 /**
@@ -1375,7 +1405,7 @@ void audit_log_n_untrustedstring(struct audit_buffer *ab, size_t len,
  */
 void audit_log_untrustedstring(struct audit_buffer *ab, const char *string)
 {
-       audit_log_n_untrustedstring(ab, strlen(string), string);
+       audit_log_n_untrustedstring(ab, string, strlen(string));
 }
 
 /* This is a helper-function to print the escaped d_path */