Backport changes for FreeBSD-SA-14:17.kmem.
git-svn-id: http://sctp-refimpl.googlecode.com/svn/trunk/KERN/usrsctp/usrsctplib@8913 9df1edf5-d72c-5b5f-11c0-5f5209eb73f7
diff --git a/netinet/sctp_auth.c b/netinet/sctp_auth.c
index dfad97e..cb4d7cb 100755
--- a/netinet/sctp_auth.c
+++ b/netinet/sctp_auth.c
@@ -32,7 +32,7 @@
#ifdef __FreeBSD__
#include <sys/cdefs.h>
-__FBSDID("$FreeBSD: head/sys/netinet/sctp_auth.c 257804 2013-11-07 18:50:11Z tuexen $");
+__FBSDID("$FreeBSD: head/sys/netinet/sctp_auth.c 268431 2014-07-08 21:54:27Z delphij $");
#endif
#include <netinet/sctp_os.h>
@@ -1818,6 +1818,7 @@
SCTP_BUF_LEN(m_notify) = 0;
auth = mtod(m_notify, struct sctp_authkey_event *);
+ memset(auth, 0, sizeof(struct sctp_authkey_event));
auth->auth_type = SCTP_AUTHENTICATION_EVENT;
auth->auth_flags = 0;
auth->auth_length = sizeof(*auth);
diff --git a/netinet/sctp_indata.c b/netinet/sctp_indata.c
index 125c82f..5b9070c 100755
--- a/netinet/sctp_indata.c
+++ b/netinet/sctp_indata.c
@@ -32,7 +32,7 @@
#ifdef __FreeBSD__
#include <sys/cdefs.h>
-__FBSDID("$FreeBSD: head/sys/netinet/sctp_indata.c 264838 2014-04-23 21:20:55Z tuexen $");
+__FBSDID("$FreeBSD: head/sys/netinet/sctp_indata.c 268431 2014-07-08 21:54:27Z delphij $");
#endif
#include <netinet/sctp_os.h>
@@ -261,6 +261,11 @@
#else
cmh = mtod(ret, struct cmsghdr *);
#endif
+ /*
+ * Make sure that there is no un-initialized padding between
+ * the cmsg header and cmsg data and after the cmsg data.
+ */
+ memset(cmh, 0, len);
if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO)) {
cmh->cmsg_level = IPPROTO_SCTP;
cmh->cmsg_len = CMSG_LEN(sizeof(struct sctp_rcvinfo));
diff --git a/netinet/sctputil.c b/netinet/sctputil.c
index 73cf3ab..476528f 100755
--- a/netinet/sctputil.c
+++ b/netinet/sctputil.c
@@ -32,7 +32,7 @@
#ifdef __FreeBSD__
#include <sys/cdefs.h>
-__FBSDID("$FreeBSD: head/sys/netinet/sctputil.c 267674 2014-06-20 13:26:49Z tuexen $");
+__FBSDID("$FreeBSD: head/sys/netinet/sctputil.c 268431 2014-07-08 21:54:27Z delphij $");
#endif
#include <netinet/sctp_os.h>
@@ -2741,6 +2741,7 @@
}
SCTP_BUF_NEXT(m_notify) = NULL;
sac = mtod(m_notify, struct sctp_assoc_change *);
+ memset(sac, 0, notif_len);
sac->sac_type = SCTP_ASSOC_CHANGE;
sac->sac_flags = 0;
sac->sac_length = sizeof(struct sctp_assoc_change);
@@ -2972,21 +2973,21 @@
if (m_notify == NULL)
/* no space left */
return;
- length += chk->send_size;
- length -= sizeof(struct sctp_data_chunk);
SCTP_BUF_LEN(m_notify) = 0;
if (sctp_stcb_is_feature_on(stcb->sctp_ep, stcb, SCTP_PCB_FLAGS_RECVNSENDFAILEVNT)) {
ssfe = mtod(m_notify, struct sctp_send_failed_event *);
+ memset(ssfe, 0, length);
ssfe->ssfe_type = SCTP_SEND_FAILED_EVENT;
if (sent) {
ssfe->ssfe_flags = SCTP_DATA_SENT;
} else {
ssfe->ssfe_flags = SCTP_DATA_UNSENT;
}
+ length += chk->send_size;
+ length -= sizeof(struct sctp_data_chunk);
ssfe->ssfe_length = length;
ssfe->ssfe_error = error;
/* not exactly what the user sent in, but should be close :) */
- bzero(&ssfe->ssfe_info, sizeof(ssfe->ssfe_info));
ssfe->ssfe_info.snd_sid = chk->rec.data.stream_number;
ssfe->ssfe_info.snd_flags = chk->rec.data.rcv_flags;
ssfe->ssfe_info.snd_ppid = chk->rec.data.payloadtype;
@@ -2996,12 +2997,15 @@
SCTP_BUF_LEN(m_notify) = sizeof(struct sctp_send_failed_event);
} else {
ssf = mtod(m_notify, struct sctp_send_failed *);
+ memset(ssf, 0, length);
ssf->ssf_type = SCTP_SEND_FAILED;
if (sent) {
ssf->ssf_flags = SCTP_DATA_SENT;
} else {
ssf->ssf_flags = SCTP_DATA_UNSENT;
}
+ length += chk->send_size;
+ length -= sizeof(struct sctp_data_chunk);
ssf->ssf_length = length;
ssf->ssf_error = error;
/* not exactly what the user sent in, but should be close :) */
@@ -3086,16 +3090,16 @@
/* no space left */
return;
}
- length += sp->length;
SCTP_BUF_LEN(m_notify) = 0;
if (sctp_stcb_is_feature_on(stcb->sctp_ep, stcb, SCTP_PCB_FLAGS_RECVNSENDFAILEVNT)) {
ssfe = mtod(m_notify, struct sctp_send_failed_event *);
+ memset(ssfe, 0, length);
ssfe->ssfe_type = SCTP_SEND_FAILED_EVENT;
ssfe->ssfe_flags = SCTP_DATA_UNSENT;
+ length += sp->length;
ssfe->ssfe_length = length;
ssfe->ssfe_error = error;
/* not exactly what the user sent in, but should be close :) */
- bzero(&ssfe->ssfe_info, sizeof(ssfe->ssfe_info));
ssfe->ssfe_info.snd_sid = sp->stream;
if (sp->some_taken) {
ssfe->ssfe_info.snd_flags = SCTP_DATA_LAST_FRAG;
@@ -3109,12 +3113,13 @@
SCTP_BUF_LEN(m_notify) = sizeof(struct sctp_send_failed_event);
} else {
ssf = mtod(m_notify, struct sctp_send_failed *);
+ memset(ssf, 0, length);
ssf->ssf_type = SCTP_SEND_FAILED;
ssf->ssf_flags = SCTP_DATA_UNSENT;
+ length += sp->length;
ssf->ssf_length = length;
ssf->ssf_error = error;
/* not exactly what the user sent in, but should be close :) */
- bzero(&ssf->ssf_info, sizeof(ssf->ssf_info));
ssf->ssf_info.sinfo_stream = sp->stream;
ssf->ssf_info.sinfo_ssn = 0;
if (sp->some_taken) {
@@ -3177,6 +3182,7 @@
return;
SCTP_BUF_LEN(m_notify) = 0;
sai = mtod(m_notify, struct sctp_adaptation_event *);
+ memset(sai, 0, sizeof(struct sctp_adaptation_event));
sai->sai_type = SCTP_ADAPTATION_INDICATION;
sai->sai_flags = 0;
sai->sai_length = sizeof(struct sctp_adaptation_event);
@@ -3233,6 +3239,7 @@
return;
SCTP_BUF_LEN(m_notify) = 0;
pdapi = mtod(m_notify, struct sctp_pdapi_event *);
+ memset(pdapi, 0, sizeof(struct sctp_pdapi_event));
pdapi->pdapi_type = SCTP_PARTIAL_DELIVERY_EVENT;
pdapi->pdapi_flags = 0;
pdapi->pdapi_length = sizeof(struct sctp_pdapi_event);
@@ -3343,6 +3350,7 @@
/* no space left */
return;
sse = mtod(m_notify, struct sctp_shutdown_event *);
+ memset(sse, 0, sizeof(struct sctp_shutdown_event));
sse->sse_type = SCTP_SHUTDOWN_EVENT;
sse->sse_flags = 0;
sse->sse_length = sizeof(struct sctp_shutdown_event);
@@ -3394,6 +3402,7 @@
}
SCTP_BUF_LEN(m_notify) = 0;
event = mtod(m_notify, struct sctp_sender_dry_event *);
+ memset(event, 0, sizeof(struct sctp_sender_dry_event));
event->sender_dry_type = SCTP_SENDER_DRY_EVENT;
event->sender_dry_flags = 0;
event->sender_dry_length = sizeof(struct sctp_sender_dry_event);
@@ -3426,7 +3435,6 @@
struct mbuf *m_notify;
struct sctp_queued_to_read *control;
struct sctp_stream_change_event *stradd;
- int len;
if ((stcb == NULL) ||
(sctp_stcb_is_feature_off(stcb->sctp_ep, stcb, SCTP_PCB_FLAGS_STREAM_CHANGEEVNT))) {
@@ -3439,25 +3447,20 @@
return;
}
stcb->asoc.peer_req_out = 0;
- m_notify = sctp_get_mbuf_for_msg(MCLBYTES, 0, M_NOWAIT, 1, MT_DATA);
+ m_notify = sctp_get_mbuf_for_msg(sizeof(struct sctp_stream_change_event), 0, M_NOWAIT, 1, MT_DATA);
if (m_notify == NULL)
/* no space left */
return;
SCTP_BUF_LEN(m_notify) = 0;
- len = sizeof(struct sctp_stream_change_event);
- if (len > M_TRAILINGSPACE(m_notify)) {
- /* never enough room */
- sctp_m_freem(m_notify);
- return;
- }
stradd = mtod(m_notify, struct sctp_stream_change_event *);
+ memset(stradd, 0, sizeof(struct sctp_stream_change_event));
stradd->strchange_type = SCTP_STREAM_CHANGE_EVENT;
stradd->strchange_flags = flag;
- stradd->strchange_length = len;
+ stradd->strchange_length = sizeof(struct sctp_stream_change_event);
stradd->strchange_assoc_id = sctp_get_associd(stcb);
stradd->strchange_instrms = numberin;
stradd->strchange_outstrms = numberout;
- SCTP_BUF_LEN(m_notify) = len;
+ SCTP_BUF_LEN(m_notify) = sizeof(struct sctp_stream_change_event);
SCTP_BUF_NEXT(m_notify) = NULL;
if (sctp_sbspace(&stcb->asoc, &stcb->sctp_socket->so_rcv) < SCTP_BUF_LEN(m_notify)) {
/* no space */
@@ -3488,32 +3491,26 @@
struct mbuf *m_notify;
struct sctp_queued_to_read *control;
struct sctp_assoc_reset_event *strasoc;
- int len;
if ((stcb == NULL) ||
(sctp_stcb_is_feature_off(stcb->sctp_ep, stcb, SCTP_PCB_FLAGS_ASSOC_RESETEVNT))) {
/* event not enabled */
return;
}
- m_notify = sctp_get_mbuf_for_msg(MCLBYTES, 0, M_NOWAIT, 1, MT_DATA);
+ m_notify = sctp_get_mbuf_for_msg(sizeof(struct sctp_assoc_reset_event), 0, M_NOWAIT, 1, MT_DATA);
if (m_notify == NULL)
/* no space left */
return;
SCTP_BUF_LEN(m_notify) = 0;
- len = sizeof(struct sctp_assoc_reset_event);
- if (len > M_TRAILINGSPACE(m_notify)) {
- /* never enough room */
- sctp_m_freem(m_notify);
- return;
- }
strasoc = mtod(m_notify, struct sctp_assoc_reset_event *);
+ memset(strasoc, 0, sizeof(struct sctp_assoc_reset_event));
strasoc->assocreset_type = SCTP_ASSOC_RESET_EVENT;
strasoc->assocreset_flags = flag;
- strasoc->assocreset_length = len;
+ strasoc->assocreset_length = sizeof(struct sctp_assoc_reset_event);
strasoc->assocreset_assoc_id= sctp_get_associd(stcb);
strasoc->assocreset_local_tsn = sending_tsn;
strasoc->assocreset_remote_tsn = recv_tsn;
- SCTP_BUF_LEN(m_notify) = len;
+ SCTP_BUF_LEN(m_notify) = sizeof(struct sctp_assoc_reset_event);
SCTP_BUF_NEXT(m_notify) = NULL;
if (sctp_sbspace(&stcb->asoc, &stcb->sctp_socket->so_rcv) < SCTP_BUF_LEN(m_notify)) {
/* no space */
@@ -3567,6 +3564,7 @@
return;
}
strreset = mtod(m_notify, struct sctp_stream_reset_event *);
+ memset(strreset, 0, len);
strreset->strreset_type = SCTP_STREAM_RESET_EVENT;
strreset->strreset_flags = flag;
strreset->strreset_length = len;
@@ -6904,9 +6902,12 @@
#if defined(__APPLE__)
SCTP_SOCKET_LOCK(so, 1);
#endif
+ if (filling_sinfo) {
+ memset(&sinfo, 0, sizeof(struct sctp_extrcvinfo));
+ }
error = sctp_sorecvmsg(so, uio, mp0, from, fromlen, flagsp,
(struct sctp_sndrcvinfo *)&sinfo, filling_sinfo);
- if ((controlp) && (filling_sinfo)) {
+ if (controlp != NULL) {
/* copy back the sinfo in a CMSG format */
if (filling_sinfo)
*controlp = sctp_build_ctl_nchunk(inp,
