sctp: streams should be recovered when it fails to send request.

Now when sending stream reset request, it closes the streams to
block further xmit of data until this request is completed, then
calls sctp_send_reconf to send the chunk.

But if sctp_send_reconf returns err, and it doesn't recover the
streams' states back,  which means the request chunk would not be
queued and sent, so the asoc will get stuck, streams are closed
and no packet is even queued.

This patch is to fix it by recovering the streams' states when
it fails to send the request, it is also to fix a return value.

Fixes: 7f9d68ac944e ("sctp: implement sender-side procedures for SSN Reset Request Parameter")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 17 insertions, 2 deletions

diff --git a/net/sctp/stream.c b/net/sctp/stream.c

path: root/ipv4.h

#ifndef IPV4_H
#define IPV4_H

#include <asm/byteorder.h>

#include "built_in.h"

struct ipv4hdr {
#if defined(__LITTLE_ENDIAN_BITFIELD)
	__extension__ uint8_t h_ihl:4,
			      h_version:4;
#elif defined (__BIG_ENDIAN_BITFIELD)
	__extension__ uint8_t h_version:4,
			      h_ihl:4;
#else
# error "Please fix <asm/byteorder.h>"
#endif
	uint8_t h_tos;
	uint16_t h_tot_len;
	uint16_t h_id;
	uint16_t h_frag_off;
	uint8_t h_ttl;
	uint8_t h_protocol;
	uint16_t h_check;
	uint32_t h_saddr;
	uint32_t h_daddr;
} __packed;

#endif /* IPV4_H */