svn commit: r252964 - stable/9/sys/netinet

Michael Tuexen tuexen at FreeBSD.org
Sun Jul 7 16:11:14 UTC 2013


Author: tuexen
Date: Sun Jul  7 16:11:13 2013
New Revision: 252964
URL: http://svnweb.freebsd.org/changeset/base/252964

Log:
  MFC r246674:
  Don't send kernel provided information in the User Initiated
  ABORT cause, since the user can also provide this kind of
  information. So the receiver doesn't know who provided the
  information.
  While there: Fix a bug where the stack would send a malformed
  ABORT chunk when using a send() call with SCTP_ABORT|SCT_SENDALL
  flags.

Modified:
  stable/9/sys/netinet/sctp_indata.c
  stable/9/sys/netinet/sctp_output.c
  stable/9/sys/netinet/sctp_pcb.c
  stable/9/sys/netinet/sctp_usrreq.c
Directory Properties:
  stable/9/sys/   (props changed)

Modified: stable/9/sys/netinet/sctp_indata.c
==============================================================================
--- stable/9/sys/netinet/sctp_indata.c	Sun Jul  7 16:08:34 2013	(r252963)
+++ stable/9/sys/netinet/sctp_indata.c	Sun Jul  7 16:11:13 2013	(r252964)
@@ -4221,19 +4221,15 @@ again:
 		abort_out_now:
 				*abort_now = 1;
 				/* XXX */
-				oper = sctp_get_mbuf_for_msg((sizeof(struct sctp_paramhdr) + sizeof(uint32_t)),
+				oper = sctp_get_mbuf_for_msg(sizeof(struct sctp_paramhdr),
 				    0, M_DONTWAIT, 1, MT_DATA);
 				if (oper) {
 					struct sctp_paramhdr *ph;
-					uint32_t *ippp;
 
-					SCTP_BUF_LEN(oper) = sizeof(struct sctp_paramhdr) +
-					    sizeof(uint32_t);
+					SCTP_BUF_LEN(oper) = sizeof(struct sctp_paramhdr);
 					ph = mtod(oper, struct sctp_paramhdr *);
 					ph->param_type = htons(SCTP_CAUSE_USER_INITIATED_ABT);
 					ph->param_length = htons(SCTP_BUF_LEN(oper));
-					ippp = (uint32_t *) (ph + 1);
-					*ippp = htonl(SCTP_FROM_SCTP_INDATA + SCTP_LOC_24);
 				}
 				stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_INDATA + SCTP_LOC_24;
 				sctp_abort_an_association(stcb->sctp_ep, stcb, oper, SCTP_SO_NOT_LOCKED);
@@ -4953,19 +4949,15 @@ sctp_handle_sack(struct mbuf *m, int off
 		abort_out_now:
 				*abort_now = 1;
 				/* XXX */
-				oper = sctp_get_mbuf_for_msg((sizeof(struct sctp_paramhdr) + sizeof(uint32_t)),
+				oper = sctp_get_mbuf_for_msg(sizeof(struct sctp_paramhdr),
 				    0, M_DONTWAIT, 1, MT_DATA);
 				if (oper) {
 					struct sctp_paramhdr *ph;
-					uint32_t *ippp;
 
-					SCTP_BUF_LEN(oper) = sizeof(struct sctp_paramhdr) +
-					    sizeof(uint32_t);
+					SCTP_BUF_LEN(oper) = sizeof(struct sctp_paramhdr);
 					ph = mtod(oper, struct sctp_paramhdr *);
 					ph->param_type = htons(SCTP_CAUSE_USER_INITIATED_ABT);
 					ph->param_length = htons(SCTP_BUF_LEN(oper));
-					ippp = (uint32_t *) (ph + 1);
-					*ippp = htonl(SCTP_FROM_SCTP_INDATA + SCTP_LOC_31);
 				}
 				stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_INDATA + SCTP_LOC_31;
 				sctp_abort_an_association(stcb->sctp_ep, stcb, oper, SCTP_SO_NOT_LOCKED);

Modified: stable/9/sys/netinet/sctp_output.c
==============================================================================
--- stable/9/sys/netinet/sctp_output.c	Sun Jul  7 16:08:34 2013	(r252963)
+++ stable/9/sys/netinet/sctp_output.c	Sun Jul  7 16:11:13 2013	(r252964)
@@ -6442,7 +6442,7 @@ sctp_sendall_iterator(struct sctp_inpcb 
 			if (m) {
 				ph = mtod(m, struct sctp_paramhdr *);
 				ph->param_type = htons(SCTP_CAUSE_USER_INITIATED_ABT);
-				ph->param_length = htons(ca->sndlen);
+				ph->param_length = htons(sizeof(struct sctp_paramhdr) + ca->sndlen);
 			}
 			/*
 			 * We add one here to keep the assoc from
@@ -12498,7 +12498,7 @@ sctp_lower_sosend(struct socket *so,
 			/* now move forward the data pointer */
 			ph = mtod(mm, struct sctp_paramhdr *);
 			ph->param_type = htons(SCTP_CAUSE_USER_INITIATED_ABT);
-			ph->param_length = htons((sizeof(struct sctp_paramhdr) + tot_out));
+			ph->param_length = htons(sizeof(struct sctp_paramhdr) + tot_out);
 			ph++;
 			SCTP_BUF_LEN(mm) = tot_out + sizeof(struct sctp_paramhdr);
 			if (top == NULL) {

Modified: stable/9/sys/netinet/sctp_pcb.c
==============================================================================
--- stable/9/sys/netinet/sctp_pcb.c	Sun Jul  7 16:08:34 2013	(r252963)
+++ stable/9/sys/netinet/sctp_pcb.c	Sun Jul  7 16:11:13 2013	(r252964)
@@ -3308,22 +3308,16 @@ sctp_inpcb_free(struct sctp_inpcb *inp, 
 				/* Left with Data unread */
 				struct mbuf *op_err;
 
-				op_err = sctp_get_mbuf_for_msg((sizeof(struct sctp_paramhdr) + sizeof(uint32_t)),
+				op_err = sctp_get_mbuf_for_msg(sizeof(struct sctp_paramhdr),
 				    0, M_DONTWAIT, 1, MT_DATA);
 				if (op_err) {
 					/* Fill in the user initiated abort */
 					struct sctp_paramhdr *ph;
-					uint32_t *ippp;
 
-					SCTP_BUF_LEN(op_err) =
-					    sizeof(struct sctp_paramhdr) + sizeof(uint32_t);
-					ph = mtod(op_err,
-					    struct sctp_paramhdr *);
-					ph->param_type = htons(
-					    SCTP_CAUSE_USER_INITIATED_ABT);
+					SCTP_BUF_LEN(op_err) = sizeof(struct sctp_paramhdr);
+					ph = mtod(op_err, struct sctp_paramhdr *);
+					ph->param_type = htons(SCTP_CAUSE_USER_INITIATED_ABT);
 					ph->param_length = htons(SCTP_BUF_LEN(op_err));
-					ippp = (uint32_t *) (ph + 1);
-					*ippp = htonl(SCTP_FROM_SCTP_PCB + SCTP_LOC_3);
 				}
 				asoc->sctp_ep->last_abort_code = SCTP_FROM_SCTP_PCB + SCTP_LOC_3;
 				sctp_send_abort_tcb(asoc, op_err, SCTP_SO_LOCKED);
@@ -3395,7 +3389,7 @@ sctp_inpcb_free(struct sctp_inpcb *inp, 
 					struct mbuf *op_err;
 
 			abort_anyway:
-					op_err = sctp_get_mbuf_for_msg((sizeof(struct sctp_paramhdr) + sizeof(uint32_t)),
+					op_err = sctp_get_mbuf_for_msg(sizeof(struct sctp_paramhdr),
 					    0, M_DONTWAIT, 1, MT_DATA);
 					if (op_err) {
 						/*
@@ -3403,18 +3397,11 @@ sctp_inpcb_free(struct sctp_inpcb *inp, 
 						 * initiated abort
 						 */
 						struct sctp_paramhdr *ph;
-						uint32_t *ippp;
 
-						SCTP_BUF_LEN(op_err) =
-						    (sizeof(struct sctp_paramhdr) +
-						    sizeof(uint32_t));
-						ph = mtod(op_err,
-						    struct sctp_paramhdr *);
-						ph->param_type = htons(
-						    SCTP_CAUSE_USER_INITIATED_ABT);
+						SCTP_BUF_LEN(op_err) = sizeof(struct sctp_paramhdr);
+						ph = mtod(op_err, struct sctp_paramhdr *);
+						ph->param_type = htons(SCTP_CAUSE_USER_INITIATED_ABT);
 						ph->param_length = htons(SCTP_BUF_LEN(op_err));
-						ippp = (uint32_t *) (ph + 1);
-						*ippp = htonl(SCTP_FROM_SCTP_PCB + SCTP_LOC_5);
 					}
 					asoc->sctp_ep->last_abort_code = SCTP_FROM_SCTP_PCB + SCTP_LOC_5;
 					sctp_send_abort_tcb(asoc, op_err, SCTP_SO_LOCKED);
@@ -3478,23 +3465,17 @@ sctp_inpcb_free(struct sctp_inpcb *inp, 
 		if ((SCTP_GET_STATE(&asoc->asoc) != SCTP_STATE_COOKIE_WAIT) &&
 		    ((asoc->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) == 0)) {
 			struct mbuf *op_err;
-			uint32_t *ippp;
 
-			op_err = sctp_get_mbuf_for_msg((sizeof(struct sctp_paramhdr) + sizeof(uint32_t)),
+			op_err = sctp_get_mbuf_for_msg(sizeof(struct sctp_paramhdr),
 			    0, M_DONTWAIT, 1, MT_DATA);
 			if (op_err) {
 				/* Fill in the user initiated abort */
 				struct sctp_paramhdr *ph;
 
-				SCTP_BUF_LEN(op_err) = (sizeof(struct sctp_paramhdr) +
-				    sizeof(uint32_t));
+				SCTP_BUF_LEN(op_err) = sizeof(struct sctp_paramhdr);
 				ph = mtod(op_err, struct sctp_paramhdr *);
-				ph->param_type = htons(
-				    SCTP_CAUSE_USER_INITIATED_ABT);
+				ph->param_type = htons(SCTP_CAUSE_USER_INITIATED_ABT);
 				ph->param_length = htons(SCTP_BUF_LEN(op_err));
-				ippp = (uint32_t *) (ph + 1);
-				*ippp = htonl(SCTP_FROM_SCTP_PCB + SCTP_LOC_7);
-
 			}
 			asoc->sctp_ep->last_abort_code = SCTP_FROM_SCTP_PCB + SCTP_LOC_7;
 			sctp_send_abort_tcb(asoc, op_err, SCTP_SO_LOCKED);

Modified: stable/9/sys/netinet/sctp_usrreq.c
==============================================================================
--- stable/9/sys/netinet/sctp_usrreq.c	Sun Jul  7 16:08:34 2013	(r252963)
+++ stable/9/sys/netinet/sctp_usrreq.c	Sun Jul  7 16:11:13 2013	(r252964)
@@ -854,7 +854,7 @@ sctp_disconnect(struct socket *so)
 					struct mbuf *op_err;
 
 			abort_anyway:
-					op_err = sctp_get_mbuf_for_msg((sizeof(struct sctp_paramhdr) + sizeof(uint32_t)),
+					op_err = sctp_get_mbuf_for_msg(sizeof(struct sctp_paramhdr),
 					    0, M_DONTWAIT, 1, MT_DATA);
 					if (op_err) {
 						/*
@@ -862,17 +862,11 @@ sctp_disconnect(struct socket *so)
 						 * initiated abort
 						 */
 						struct sctp_paramhdr *ph;
-						uint32_t *ippp;
 
-						SCTP_BUF_LEN(op_err) =
-						    (sizeof(struct sctp_paramhdr) + sizeof(uint32_t));
-						ph = mtod(op_err,
-						    struct sctp_paramhdr *);
-						ph->param_type = htons(
-						    SCTP_CAUSE_USER_INITIATED_ABT);
+						SCTP_BUF_LEN(op_err) = sizeof(struct sctp_paramhdr);
+						ph = mtod(op_err, struct sctp_paramhdr *);
+						ph->param_type = htons(SCTP_CAUSE_USER_INITIATED_ABT);
 						ph->param_length = htons(SCTP_BUF_LEN(op_err));
-						ippp = (uint32_t *) (ph + 1);
-						*ippp = htonl(SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4);
 					}
 					stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4;
 					sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
@@ -1069,22 +1063,16 @@ sctp_shutdown(struct socket *so)
 				struct mbuf *op_err;
 
 		abort_anyway:
-				op_err = sctp_get_mbuf_for_msg((sizeof(struct sctp_paramhdr) + sizeof(uint32_t)),
+				op_err = sctp_get_mbuf_for_msg(sizeof(struct sctp_paramhdr),
 				    0, M_DONTWAIT, 1, MT_DATA);
 				if (op_err) {
 					/* Fill in the user initiated abort */
 					struct sctp_paramhdr *ph;
-					uint32_t *ippp;
 
-					SCTP_BUF_LEN(op_err) =
-					    sizeof(struct sctp_paramhdr) + sizeof(uint32_t);
-					ph = mtod(op_err,
-					    struct sctp_paramhdr *);
-					ph->param_type = htons(
-					    SCTP_CAUSE_USER_INITIATED_ABT);
+					SCTP_BUF_LEN(op_err) = sizeof(struct sctp_paramhdr);
+					ph = mtod(op_err, struct sctp_paramhdr *);
+					ph->param_type = htons(SCTP_CAUSE_USER_INITIATED_ABT);
 					ph->param_length = htons(SCTP_BUF_LEN(op_err));
-					ippp = (uint32_t *) (ph + 1);
-					*ippp = htonl(SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6);
 				}
 				stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6;
 				sctp_abort_an_association(stcb->sctp_ep, stcb,


More information about the svn-src-all mailing list