@@ -10,9 +10,83 @@
#define UNIX_DIAG_PUT(skb, attrtype, attrlen) \
RTA_DATA(__RTA_PUT(skb, attrtype, attrlen))
+static int sk_diag_fill(struct sock *sk, struct sk_buff *skb, struct unix_diag_req *req,
+ u32 pid, u32 seq, u32 flags, int sk_ino)
+{
+ unsigned char *b = skb_tail_pointer(skb);
+ struct nlmsghdr *nlh;
+ struct unix_diag_msg *rep;
+
+ nlh = NLMSG_PUT(skb, pid, seq, SOCK_DIAG_BY_FAMILY, sizeof(*rep));
+ nlh->nlmsg_flags = flags;
+
+ rep = NLMSG_DATA(nlh);
+
+ rep->udiag_family = AF_UNIX;
+ rep->udiag_type = sk->sk_type;
+ rep->udiag_state = sk->sk_state;
+ rep->udiag_ino = sk_ino;
+ sock_diag_save_cookie(sk, rep->udiag_cookie);
+
+ nlh->nlmsg_len = skb_tail_pointer(skb) - b;
+ return skb->len;
+
+nlmsg_failure:
+ nlmsg_trim(skb, b);
+ return -EMSGSIZE;
+}
+
+static int sk_diag_dump(struct sock *sk, struct sk_buff *skb, struct unix_diag_req *req,
+ u32 pid, u32 seq, u32 flags)
+{
+ int sk_ino;
+
+ unix_state_lock(sk);
+ sk_ino = sock_i_ino(sk);
+ unix_state_unlock(sk);
+
+ if (!sk_ino)
+ return 0;
+
+ return sk_diag_fill(sk, skb, req, pid, seq, flags, sk_ino);
+}
+
static int unix_diag_dump(struct sk_buff *skb, struct netlink_callback *cb)
{
- return 0;
+ struct unix_diag_req *req;
+ int num, s_num, slot, s_slot;
+
+ req = NLMSG_DATA(cb->nlh);
+
+ s_slot = cb->args[0];
+ num = s_num = cb->args[1];
+
+ spin_lock(&unix_table_lock);
+ for (slot = s_slot; slot <= UNIX_HASH_SIZE; s_num = 0, slot++) {
+ struct sock *sk;
+ struct hlist_node *node;
+
+ num = 0;
+ sk_for_each(sk, node, &unix_socket_table[slot]) {
+ if (num < s_num)
+ goto next;
+ if (!(req->udiag_states & (1 << sk->sk_state)))
+ goto next;
+ if (sk_diag_dump(sk, skb, req,
+ NETLINK_CB(cb->skb).pid,
+ cb->nlh->nlmsg_seq,
+ NLM_F_MULTI) < 0)
+ goto done;
+next:
+ num++;
+ }
+ }
+done:
+ spin_unlock(&unix_table_lock);
+ cb->args[0] = slot;
+ cb->args[1] = num;
+
+ return skb->len;
}
static int unix_diag_get_exact(struct sk_buff *in_skb,
Walk the unix sockets table and fill the core response structure, which includes type, state and inode. Signed-off-by: Pavel Emelyanov <xemul@parallels.com> --- net/unix/diag.c | 76 ++++++++++++++++++++++++++++++++++++++++++++++++++++++- 1 files changed, 75 insertions(+), 1 deletions(-)