From: Vlad Yasevich Date: Mon, 18 Apr 2011 19:14:47 +0000 (+0000) Subject: sctp: Allow bindx_del to accept 0 port X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=ee9cbaca7d73ea0098f00ecd10fe6e4a4792e32c;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git sctp: Allow bindx_del to accept 0 port We allow 0 port when adding new addresses. It only makes sence to allow 0 port when removing addresses. When removing the currently bound port will be used when the port in the address is set to 0. Signed-off-by: Vlad Yasevich Signed-off-by: Wei Yongjun Signed-off-by: David S. Miller --- diff --git a/net/sctp/socket.c b/net/sctp/socket.c index 5c9980ae36bb..431b8905c570 100644 --- a/net/sctp/socket.c +++ b/net/sctp/socket.c @@ -658,11 +658,15 @@ static int sctp_bindx_rem(struct sock *sk, struct sockaddr *addrs, int addrcnt) goto err_bindx_rem; } - if (sa_addr->v4.sin_port != htons(bp->port)) { + if (sa_addr->v4.sin_port && + sa_addr->v4.sin_port != htons(bp->port)) { retval = -EINVAL; goto err_bindx_rem; } + if (!sa_addr->v4.sin_port) + sa_addr->v4.sin_port = htons(bp->port); + /* FIXME - There is probably a need to check if sk->sk_saddr and * sk->sk_rcv_addr are currently set to one of the addresses to * be removed. This is something which needs to be looked into