@@ -4,5 +4,6 @@ sctp_bind
sctp_bindx
sctp_client
sctp_connectx
+sctp_peeloff_client
sctp_peeloff_server
sctp_server
@@ -1,5 +1,6 @@
TARGETS = sctp_client sctp_server sctp_bind sctp_bindx sctp_connectx \
- sctp_asconf_params_client sctp_asconf_params_server sctp_peeloff_server
+ sctp_asconf_params_client sctp_asconf_params_server \
+ sctp_peeloff_client sctp_peeloff_server
DEPS = sctp_common.c sctp_common.h
CFLAGS ?= -Wall
new file mode 100644
@@ -0,0 +1,254 @@
+#include "sctp_common.h"
+
+static void usage(char *progname)
+{
+ fprintf(stderr,
+ "usage: %s [-e expected_msg] [-v] [-n] [-x] addr port\n"
+ "\nWhere:\n\t"
+
+ "-e Optional expected message from server e.g. \"nopeer\".\n\t"
+ " If not present the client context will be used as a\n\t"
+ " comparison with the servers reply.\n\t"
+ "-n Do NOT call connect(3) or connectx(3).\n\t"
+ "-v Print context and ip options information.\n\t"
+ "-x Use sctp_connectx(3) instead of connect(3).\n\t"
+ "addr IPv4 or IPv6 address (e.g. 127.0.0.1 or ::1).\n\t"
+ "port Port for accessing server.\n", progname);
+ exit(1);
+}
+
+int main(int argc, char **argv)
+{
+ int opt, sock, result, save_errno, peeloff_sk = 0, flags;
+ int on = 1, off = 0;
+ sctp_assoc_t assoc_id = 0;
+ socklen_t sinlen, opt_len;
+ struct sockaddr_storage sin;
+ struct addrinfo hints, *serverinfo;
+ char byte = 0x41, label[1024], *expected = NULL;
+ bool verbose = false, connectx = false, no_connects = false;
+ bool ipv4 = false, expect_ipopt = false;
+ char *context;
+ struct timeval tm;
+
+ while ((opt = getopt(argc, argv, "e:vxmni")) != -1) {
+ switch (opt) {
+ case 'e':
+ expected = optarg;
+ break;
+ case 'i':
+ expect_ipopt = true;
+ break;
+ case 'v':
+ verbose = true;
+ break;
+ case 'n':
+ no_connects = true;
+ break;
+ case 'x':
+ connectx = true;
+ break;
+ default:
+ usage(argv[0]);
+ }
+ }
+
+ if ((argc - optind) != 2)
+ usage(argv[0]);
+
+ memset(&hints, 0, sizeof(struct addrinfo));
+ hints.ai_protocol = IPPROTO_SCTP;
+ hints.ai_socktype = SOCK_SEQPACKET;
+ if (verbose) {
+ if (getcon(&context) < 0)
+ context = strdup("unavailable");
+ printf("Client process context: %s\n", context);
+ free(context);
+ }
+
+ result = getaddrinfo(argv[optind], argv[optind + 1], &hints,
+ &serverinfo);
+ if (result < 0) {
+ fprintf(stderr, "Client getaddrinfo: %s\n",
+ gai_strerror(result));
+ exit(2);
+ }
+
+ if (serverinfo->ai_family == AF_INET)
+ ipv4 = true;
+
+ sock = socket(serverinfo->ai_family, serverinfo->ai_socktype,
+ serverinfo->ai_protocol);
+ if (sock < 0) {
+ perror("Client socket");
+ exit(3);
+ }
+
+ /*
+ * These timeouts are set to test whether the peer { recv } completes
+ * or not when the permission is denied.
+ */
+ tm.tv_sec = 4;
+ tm.tv_usec = 0;
+ result = setsockopt(sock, SOL_SOCKET, SO_SNDTIMEO, &tm, sizeof(tm));
+ if (result < 0) {
+ perror("Client setsockopt: SO_SNDTIMEO");
+ exit(4);
+ }
+
+ result = setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, &tm, sizeof(tm));
+ if (result < 0) {
+ perror("Client setsockopt: SO_RCVTIMEO");
+ exit(5);
+ }
+
+ /* Subscribe to assoc_id events */
+ result = set_subscr_events(sock, off, on, off, off);
+ if (result < 0) {
+ perror("Client setsockopt: SCTP_EVENTS");
+ close(sock);
+ exit(1);
+ }
+
+ if (!no_connects) {
+ if (connectx)
+ result = sctp_connectx(sock, serverinfo->ai_addr, 1, NULL);
+ else
+ result = connect(sock, serverinfo->ai_addr,
+ serverinfo->ai_addrlen);
+ if (result < 0) {
+ save_errno = errno;
+ close(sock);
+ perror("Client connect");
+ switch (save_errno) {
+ case EINPROGRESS:
+ exit(6);
+ break;
+ case ENOSPC:
+ exit(7);
+ break;
+ case EACCES:
+ exit(8);
+ break;
+ default:
+ exit(9);
+ }
+ }
+ if (verbose) {
+ print_context(sock, "Client connect");
+ print_ip_option(sock, ipv4, "Client connect");
+ }
+ } else {
+ /* First send a message to get an association. */
+ result = sctp_sendmsg(sock, &byte, 1,
+ serverinfo->ai_addr,
+ serverinfo->ai_addrlen,
+ 0, 0, 0, 0, 0);
+ if (result < 0) {
+ perror("Client sctp_sendmsg");
+ close(sock);
+ exit(12);
+ }
+
+ if (verbose) {
+ print_context(sock, "Client SEQPACKET sctp_sendmsg");
+ print_ip_option(sock, ipv4,
+ "Client SEQPACKET sctp_sendmsg");
+ }
+ }
+
+ /* Get assoc_id for sctp_peeloff() */
+ sinlen = sizeof(sin);
+ flags = 0;
+ result = sctp_recvmsg(sock, label, sizeof(label),
+ (struct sockaddr *)&sin, &sinlen,
+ NULL, &flags);
+ if (result < 0) {
+ perror("Client sctp_recvmsg-1");
+ close(sock);
+ exit(1);
+ }
+
+ if ((flags & (MSG_NOTIFICATION | MSG_EOR)) != (MSG_NOTIFICATION | MSG_EOR)) {
+ printf("Invalid sctp_recvmsg response FLAGS: %x\n", flags);
+ close(sock);
+ exit(1);
+ }
+ handle_event(label, NULL, &assoc_id, verbose, "Peeloff Client");
+ if (assoc_id <= 0) {
+ printf("Client Invalid association ID: %d\n", assoc_id);
+ close(sock);
+ exit(1);
+ }
+ /* No more notifications */
+ result = set_subscr_events(sock, off, off, off, off);
+ if (result < 0) {
+ perror("Client setsockopt: SCTP_EVENTS");
+ close(sock);
+ exit(1);
+ }
+
+ peeloff_sk = sctp_peeloff(sock, assoc_id);
+ if (peeloff_sk < 0) {
+ perror("Client sctp_peeloff");
+ close(sock);
+ exit(1);
+ }
+ if (verbose) {
+ printf("Client sctp_peeloff(3) on sk: %d with association ID: %d\n",
+ peeloff_sk, assoc_id);
+ print_context(peeloff_sk, "Client PEELOFF");
+ }
+
+ if (!no_connects) {
+ result = sctp_sendmsg(peeloff_sk, &byte, 1,
+ (struct sockaddr *)&sin, sinlen,
+ 0, 0, 0, 0, 0);
+ if (result < 0) {
+ perror("Client sctp_sendmsg");
+ close(peeloff_sk);
+ close(sock);
+ exit(12);
+ }
+
+ if (verbose) {
+ print_context(peeloff_sk,
+ "Client SEQPACKET peeloff sctp_sendmsg");
+ print_ip_option(peeloff_sk, ipv4,
+ "Client SEQPACKET peeloff sctp_sendmsg");
+ }
+ }
+
+ result = sctp_recvmsg(peeloff_sk, label, sizeof(label),
+ NULL, 0, NULL, NULL);
+ if (result < 0) {
+ perror("Client sctp_recvmsg");
+ close(peeloff_sk);
+ close(sock);
+ exit(13);
+ }
+ if (expect_ipopt)
+ expected = get_ip_option(peeloff_sk, ipv4, &opt_len);
+
+ label[result] = 0;
+ close(peeloff_sk);
+ close(sock);
+
+ if (!expected && !expect_ipopt) {
+ result = getcon(&expected);
+ if (result < 0) {
+ perror("Client getcon");
+ exit(14);
+ }
+ }
+
+ if (strcmp(expected, label)) {
+ fprintf(stderr, "Client expected %s, got %s\n",
+ expected, label);
+ exit(15);
+ } else if (verbose) {
+ printf("Client received %s\n", label);
+ }
+
+ exit(0);
+}
@@ -44,6 +44,7 @@ BEGIN {
# asconf parameter tests require two local non-loopback addresses.
$ipaddress_list = `ip -o addr show up scope global`;
$test_asconf = 0;
+ $test_clpeeloff = 0;
$count = 0;
$ipaddress[0] = 0;
$ipaddress[1] = 0;
@@ -60,17 +61,26 @@ BEGIN {
$test_asconf = 1;
}
+ # SCTP client peeloff has been fixed in kernel 5.18+
+ $kvercur = `uname -r`;
+ chomp($kvercur);
+
+ if ( `$basedir/../kvercmp $kvercur 5.18` > 0 ) {
+ $test_clpeeloff = 1;
+ $test_count += 18;
+ }
+
# Determine if CALIPSO supported by netlabelctl(8) and kernel.
$test_calipso = 0;
$netlabelctl = `netlabelctl -V`;
$netlabelctl =~ s/\D//g;
- $kvercur = `uname -r`;
- chomp($kvercur);
- $kvermincalipso = "4.8";
- $rc = `$basedir/../kvercmp $kvercur $kvermincalipso`;
+ $rc = `$basedir/../kvercmp $kvercur 4.8`;
if ( $netlabelctl gt "021" && $rc > 0 ) {
$test_count += 13;
+ if ($test_clpeeloff) {
+ $test_count += 6;
+ }
$test_calipso = 1;
}
@@ -428,6 +438,24 @@ $result = system
"runcon -t test_sctp_client_t -l s0:c182.c193 -- $basedir/sctp_client $v stream 127.0.0.1 1035 2>&1";
ok( $result >> 8 eq 6 );
+if ($test_clpeeloff) {
+
+# Verify that authorized client can communicate with the server peeloff->SEQ->STREAM with client using connect(2).
+ $result = system
+"runcon -t test_sctp_client_t -l s0:c182.c192 $basedir/sctp_peeloff_client $v -i 127.0.0.1 1035";
+ ok( $result eq 0 );
+
+# Verify that authorized client can communicate with the server peeloff->SEQ->STREAM with client using sctp_connectx(3).
+ $result = system
+"runcon -t test_sctp_client_t -l s0:c182.c192 $basedir/sctp_peeloff_client $v -x -i 127.0.0.1 1035";
+ ok( $result eq 0 );
+
+# Verify that authorized client can communicate with the server peeloff->SEQ->STREAM with no client connect(2).
+ $result = system
+"runcon -t test_sctp_client_t -l s0:c182.c192 $basedir/sctp_peeloff_client $v -n -i 127.0.0.1 1035";
+ ok( $result eq 0 );
+}
+
# Kill the stream server.
server_end($pid);
@@ -463,12 +491,30 @@ $result = system
"runcon -t test_sctp_client_t -l s0:c20.c300 -- $basedir/sctp_client $v -i seq 127.0.0.1 1035 2>&1";
ok( $result >> 8 eq 7 );
+if ($test_clpeeloff) {
+
+# Verify that authorized client can communicate with the server peeloff->SEQ->SEQ with client using connect(2).
+ $result = system
+"runcon -t test_sctp_client_t -l s0:c20.c30 $basedir/sctp_peeloff_client $v -i 127.0.0.1 1035";
+ ok( $result eq 0 );
+
+# Verify that authorized client can communicate with the server peeloff->SEQ->SEQ with client using sctp_connectx(3).
+ $result = system
+"runcon -t test_sctp_client_t -l s0:c20.c30 $basedir/sctp_peeloff_client $v -x -i 127.0.0.1 1035";
+ ok( $result eq 0 );
+
+# Verify that authorized client can communicate with the server peeloff->SEQ->SEQ with no client connect(2).
+ $result = system
+"runcon -t test_sctp_client_t -l s0:c20.c30 $basedir/sctp_peeloff_client $v -n -i 127.0.0.1 1035";
+ ok( $result eq 0 );
+}
+
# Kill server.
server_end($pid);
print "# Testing CIPSO/IPv4 - TAG 1 PEELOFF using socket ip_option data\n";
-# Test sctp_peeloff(3) using 1 to Many SOCK_SEQPACKET
+# Test sctp_peeloff(3) server using 1 to Many SOCK_SEQPACKET
$pid = server_start(
"-t test_sctp_server_t -l s0:c0.c10",
"sctp_peeloff_server",
@@ -531,6 +577,24 @@ $result = system
"runcon -t test_sctp_client_t -l s0:c1023 -- $basedir/sctp_client $v stream 127.0.0.1 1035 2>&1";
ok( $result >> 8 eq 6 );
+if ($test_clpeeloff) {
+
+# Verify that authorized client can communicate with the server peeloff->SEQ->STREAM with client using connect(2).
+ $result = system
+"runcon -t test_sctp_client_t -l s0:c782,c714,c769,c788,c803,c842,c864 $basedir/sctp_peeloff_client $v -i 127.0.0.1 1035";
+ ok( $result eq 0 );
+
+# Verify that authorized client can communicate with the server peeloff->SEQ->STREAM with client using sctp_connectx(3).
+ $result = system
+"runcon -t test_sctp_client_t -l s0:c782,c714,c769,c788,c803,c842,c864 $basedir/sctp_peeloff_client $v -x -i 127.0.0.1 1035";
+ ok( $result eq 0 );
+
+# Verify that authorized client can communicate with the server peeloff->SEQ->STREAM with no client connect(2).
+ $result = system
+"runcon -t test_sctp_client_t -l s0:c782,c714,c769,c788,c803,c842,c864 $basedir/sctp_peeloff_client $v -n -i 127.0.0.1 1035";
+ ok( $result eq 0 );
+}
+
# Kill the stream server.
server_end($pid);
@@ -566,12 +630,30 @@ $result = system
"runcon -t test_sctp_client_t -l s0:c200.c216 -- $basedir/sctp_client $v -i seq 127.0.0.1 1035 2>&1";
ok( $result >> 8 eq 7 );
+if ($test_clpeeloff) {
+
+# Verify that authorized client can communicate with the server peeloff->SEQ->SEQ with client using connect(2).
+ $result = system
+"runcon -t test_sctp_client_t -l s0:c20.c30 $basedir/sctp_peeloff_client $v -i 127.0.0.1 1035";
+ ok( $result eq 0 );
+
+# Verify that authorized client can communicate with the server peeloff->SEQ->SEQ with client using sctp_connectx(3).
+ $result = system
+"runcon -t test_sctp_client_t -l s0:c20.c30 $basedir/sctp_peeloff_client $v -x -i 127.0.0.1 1035";
+ ok( $result eq 0 );
+
+# Verify that authorized client can communicate with the server peeloff->SEQ->SEQ with no client connect(2).
+ $result = system
+"runcon -t test_sctp_client_t -l s0:c20.c30 $basedir/sctp_peeloff_client $v -n -i 127.0.0.1 1035";
+ ok( $result eq 0 );
+}
+
# Kill server.
server_end($pid);
print "# Testing CIPSO/IPv4 - TAG 2 PEELOFF using socket ip_option data\n";
-# Test sctp_peeloff(3) using 1 to Many SOCK_SEQPACKET
+# Test sctp_peeloff(3) server using 1 to Many SOCK_SEQPACKET
$pid = server_start(
"-t test_sctp_server_t -l s0:c0.c10",
"sctp_peeloff_server",
@@ -634,6 +716,24 @@ $result = system
"runcon -t test_sctp_client_t -l s0:c1023 -- $basedir/sctp_client $v stream 127.0.0.1 1035 2>&1";
ok( $result >> 8 eq 6 );
+if ($test_clpeeloff) {
+
+# Verify that authorized client can communicate with the server peeloff->SEQ->STREAM with client using connect(2).
+ $result = system
+"runcon -t test_sctp_client_t -l s0:c782,c714,c769,c788,c803,c842,c864 $basedir/sctp_peeloff_client $v -i 127.0.0.1 1035";
+ ok( $result eq 0 );
+
+# Verify that authorized client can communicate with the server peeloff->SEQ->STREAM with client using sctp_connectx(3).
+ $result = system
+"runcon -t test_sctp_client_t -l s0:c782,c714,c769,c788,c803,c842,c864 $basedir/sctp_peeloff_client $v -x -i 127.0.0.1 1035";
+ ok( $result eq 0 );
+
+# Verify that authorized client can communicate with the server peeloff->SEQ->STREAM with no client connect(2).
+ $result = system
+"runcon -t test_sctp_client_t -l s0:c782,c714,c769,c788,c803,c842,c864 $basedir/sctp_peeloff_client $v -n -i 127.0.0.1 1035";
+ ok( $result eq 0 );
+}
+
# Kill the stream server.
server_end($pid);
@@ -669,12 +769,30 @@ $result = system
"runcon -t test_sctp_client_t -l s0:c20,c22,c24,c30.c33,c38,c42.c45,c48,c50 -- $basedir/sctp_client $v -i seq 127.0.0.1 1035 2>&1";
ok( $result >> 8 eq 7 );
+if ($test_clpeeloff) {
+
+# Verify that authorized client can communicate with the server peeloff->SEQ->SEQ with client using connect(2).
+ $result = system
+"runcon -t test_sctp_client_t -l s0:c20.c50 $basedir/sctp_peeloff_client $v -i 127.0.0.1 1035";
+ ok( $result eq 0 );
+
+# Verify that authorized client can communicate with the server peeloff->SEQ->SEQ with client using sctp_connectx(3).
+ $result = system
+"runcon -t test_sctp_client_t -l s0:c20.c50 $basedir/sctp_peeloff_client $v -x -i 127.0.0.1 1035";
+ ok( $result eq 0 );
+
+# Verify that authorized client can communicate with the server peeloff->SEQ->SEQ with no client connect(2).
+ $result = system
+"runcon -t test_sctp_client_t -l s0:c20.c50 $basedir/sctp_peeloff_client $v -n -i 127.0.0.1 1035";
+ ok( $result eq 0 );
+}
+
# Kill server.
server_end($pid);
print "# Testing CIPSO/IPv4 - TAG 5 PEELOFF using socket ip_option data\n";
-# Test sctp_peeloff(3) using 1 to Many SOCK_SEQPACKET
+# Test sctp_peeloff(3) server using 1 to Many SOCK_SEQPACKET
$pid = server_start(
"-t test_sctp_server_t -l s0:c0.c10",
"sctp_peeloff_server",
@@ -784,6 +902,24 @@ if ($test_calipso) {
"runcon -t test_sctp_client_t -l s0:c8.c12 -- $basedir/sctp_client $v -i stream ::1 1035 2>&1";
ok( $result >> 8 eq 6 );
+ if ($test_clpeeloff) {
+
+# Verify that authorized client can communicate with the server peeloff->SEQ->STREAM with client using connect(2).
+ $result = system
+"runcon -t test_sctp_client_t -l s0:c0,c12,c24,c36,c28,c610,c712,c414,c516,c318,c820,c622,c924,c726,c128,c330,c832,c534,c936,c138,c740,c42,c44,c246,c648,c950,c152,c354,c856,c158,c960,c662,c634,c686,c368,c570,c782,c714,c769,c788,c803,c842,c864,c986,c788,c290,c392,c594,c896,c698,c1023 $basedir/sctp_peeloff_client $v -i ::1 1035";
+ ok( $result eq 0 );
+
+# Verify that authorized client can communicate with the server peeloff->SEQ->STREAM with client using sctp_connectx(3).
+ $result = system
+"runcon -t test_sctp_client_t -l s0:c0,c12,c24,c36,c28,c610,c712,c414,c516,c318,c820,c622,c924,c726,c128,c330,c832,c534,c936,c138,c740,c42,c44,c246,c648,c950,c152,c354,c856,c158,c960,c662,c634,c686,c368,c570,c782,c714,c769,c788,c803,c842,c864,c986,c788,c290,c392,c594,c896,c698,c1023 $basedir/sctp_peeloff_client $v -x -i ::1 1035";
+ ok( $result eq 0 );
+
+# Verify that authorized client can communicate with the server peeloff->SEQ->STREAM with no client connect(2).
+ $result = system
+"runcon -t test_sctp_client_t -l s0:c0,c12,c24,c36,c28,c610,c712,c414,c516,c318,c820,c622,c924,c726,c128,c330,c832,c534,c936,c138,c740,c42,c44,c246,c648,c950,c152,c354,c856,c158,c960,c662,c634,c686,c368,c570,c782,c714,c769,c788,c803,c842,c864,c986,c788,c290,c392,c594,c896,c698,c1023 $basedir/sctp_peeloff_client $v -n -i ::1 1035";
+ ok( $result eq 0 );
+ }
+
# Kill the stream server.
server_end($pid);
@@ -819,12 +955,30 @@ if ($test_calipso) {
"runcon -t test_sctp_client_t -l s0:c19.c50 -- $basedir/sctp_client $v -i seq ::1 1035 2>&1";
ok( $result >> 8 eq 6 );
+ if ($test_clpeeloff) {
+
+# Verify that authorized client can communicate with the server peeloff->SEQ->SEQ with client using connect(2).
+ $result = system
+"runcon -t test_sctp_client_t -l s0:c20.c50 $basedir/sctp_peeloff_client $v -i ::1 1035";
+ ok( $result eq 0 );
+
+# Verify that authorized client can communicate with the server peeloff->SEQ->SEQ with client using sctp_connectx(3).
+ $result = system
+"runcon -t test_sctp_client_t -l s0:c20.c50 $basedir/sctp_peeloff_client $v -x -i ::1 1035";
+ ok( $result eq 0 );
+
+# Verify that authorized client can communicate with the server peeloff->SEQ->SEQ with no client connect(2).
+ $result = system
+"runcon -t test_sctp_client_t -l s0:c20.c50 $basedir/sctp_peeloff_client $v -n -i ::1 1035";
+ ok( $result eq 0 );
+ }
+
# Kill server.
server_end($pid);
print "# Testing CALIPSO/IPv6 PEELOFF using socket ip_option data\n";
- # Test sctp_peeloff(3) using 1 to Many SOCK_SEQPACKET
+ # Test sctp_peeloff(3) server using 1 to Many SOCK_SEQPACKET
$pid = server_start(
"-t test_sctp_server_t -l s0:c0.c10",
"sctp_peeloff_server",
Currently the testsuite only verifies that SCTP peeloff works on the server side. However, it can just as well be used on the client side as well, which isn't being tested (and actually is buggy at the time of writing). To correct this, add a simple SCTP peeloff client and a couple tests that verify that the client-side peeloff works well with SELinux. The new tests are enabled on kernels 5.18+, where the fixes were introduced. While the fixes are now queued also for some stable streams, it's much simpler to just check the version against 5.18 and skip the test for all older kernels. Signed-off-by: Ondrej Mosnacek <omosnace@redhat.com> --- v4: added a kernel version check v3: fixed uninitialized "sinlen" variable in sctp_peeloff_client.c v2: rebased and resolved a conflict tests/sctp/.gitignore | 1 + tests/sctp/Makefile | 3 +- tests/sctp/sctp_peeloff_client.c | 254 +++++++++++++++++++++++++++++++ tests/sctp/test | 170 ++++++++++++++++++++- 4 files changed, 419 insertions(+), 9 deletions(-) create mode 100644 tests/sctp/sctp_peeloff_client.c