August 2022 - Linux-kselftest-mirror

[PATCH v2] net-next: Fix IP_UNICAST_IF option behavior for connected sockets

by Richard Gobert

The IP_UNICAST_IF socket option is used to set the outgoing interface for outbound packets. The IP_UNICAST_IF socket option was added as it was needed by the Wine project, since no other existing option (SO_BINDTODEVICE socket option, IP_PKTINFO socket option or the bind function) provided the needed characteristics needed by the IP_UNICAST_IF socket option. [1] The IP_UNICAST_IF socket option works well for unconnected sockets, that is, the interface specified by the IP_UNICAST_IF socket option is taken into consideration in the route lookup process when a packet is being sent. However, for connected sockets, the outbound interface is chosen when connecting the socket, and in the route lookup process which is done when a packet is being sent, the interface specified by the IP_UNICAST_IF socket option is being ignored. This inconsistent behavior was reported and discussed in an issue opened on systemd's GitHub project [2]. Also, a bug report was submitted in the kernel's bugzilla [3]. To understand the problem in more detail, we can look at what happens for UDP packets over IPv4 (The same analysis was done separately in the referenced systemd issue). When a UDP packet is sent the udp_sendmsg function gets called and the following happens: 1. The oif member of the struct ipcm_cookie ipc (which stores the output interface of the packet) is initialized by the ipcm_init_sk function to inet->sk.sk_bound_dev_if (the device set by the SO_BINDTODEVICE socket option). 2. If the IP_PKTINFO socket option was set, the oif member gets overridden by the call to the ip_cmsg_send function. 3. If no output interface was selected yet, the interface specified by the IP_UNICAST_IF socket option is used. 4. If the socket is connected and no destination address is specified in the send function, the struct ipcm_cookie ipc is not taken into consideration and the cached route, that was calculated in the connect function is being used. Thus, for a connected socket, the IP_UNICAST_IF sockopt isn't taken into consideration. This patch corrects the behavior of the IP_UNICAST_IF socket option for connect()ed sockets by taking into consideration the IP_UNICAST_IF sockopt when connecting the socket. In order to avoid reconnecting the socket, this option is still ignored when applied on an already connected socket until connect() is called again by the Richard Gobert. Change the __ip4_datagram_connect function, which is called during socket connection, to take into consideration the interface set by the IP_UNICAST_IF socket option, in a similar way to what is done in the udp_sendmsg function. [1] https://lore.kernel.org/netdev/1328685717.4736.4.camel@edumazet-laptop/T/ [2] https://github.com/systemd/systemd/issues/11935#issuecomment-618691018 [3] https://bugzilla.kernel.org/show_bug.cgi?id=210255 Signed-off-by: Richard Gobert <richardbgobert(a)gmail.com> --- v1 -> v2: Added self-tests and targeted to net-next. net/ipv4/datagram.c | 2 ++ tools/testing/selftests/net/fcnal-test.sh | 30 +++++++++++++++++++++++ tools/testing/selftests/net/nettest.c | 16 ++++++++++-- 3 files changed, 46 insertions(+), 2 deletions(-) diff --git a/net/ipv4/datagram.c b/net/ipv4/datagram.c index ffd57523331f..405a8c2aea64 100644 --- a/net/ipv4/datagram.c +++ b/net/ipv4/datagram.c @@ -42,6 +42,8 @@ int __ip4_datagram_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len oif = inet->mc_index; if (!saddr) saddr = inet->mc_addr; + } else if (!oif) { + oif = inet->uc_index; } fl4 = &inet->cork.fl.u.ip4; rt = ip_route_connect(fl4, usin->sin_addr.s_addr, saddr, oif, diff --git a/tools/testing/selftests/net/fcnal-test.sh b/tools/testing/selftests/net/fcnal-test.sh index 03b586760164..31c3b6ebd388 100755 --- a/tools/testing/selftests/net/fcnal-test.sh +++ b/tools/testing/selftests/net/fcnal-test.sh @@ -1466,6 +1466,13 @@ ipv4_udp_novrf() run_cmd nettest -D -r ${a} -d ${NSA_DEV} -S -0 ${NSA_IP} log_test_addr ${a} $? 0 "Client, device bind via IP_UNICAST_IF" + log_start + run_cmd_nsb nettest -D -s & + sleep 1 + run_cmd nettest -D -r ${a} -d ${NSA_DEV} -S -0 ${NSA_IP} -U + log_test_addr ${a} $? 0 "Client, device bind via IP_UNICAST_IF, with connect()" + + log_start show_hint "Should fail 'Connection refused'" run_cmd nettest -D -r ${a} @@ -1525,6 +1532,13 @@ ipv4_udp_novrf() run_cmd nettest -D -d ${NSA_DEV} -S -r ${a} log_test_addr ${a} $? 0 "Global server, device client via IP_UNICAST_IF, local connection" + log_start + run_cmd nettest -s -D & + sleep 1 + run_cmd nettest -D -d ${NSA_DEV} -S -r ${a} -U + log_test_addr ${a} $? 0 "Global server, device client via IP_UNICAST_IF, local connection, with connect()" + + # IPv4 with device bind has really weird behavior - it overrides the # fib lookup, generates an rtable and tries to send the packet. This # causes failures for local traffic at different places @@ -1550,6 +1564,15 @@ ipv4_udp_novrf() sleep 1 run_cmd nettest -D -r ${a} -d ${NSA_DEV} -S log_test_addr ${a} $? 1 "Global server, device client via IP_UNICAST_IF, local connection" + + log_start + show_hint "Should fail since addresses on loopback are out of device scope" + run_cmd nettest -D -s & + sleep 1 + run_cmd nettest -D -r ${a} -d ${NSA_DEV} -S -U + log_test_addr ${a} $? 1 "Global server, device client via IP_UNICAST_IF, local connection, with connect()" + + done a=${NSA_IP} @@ -3157,6 +3180,13 @@ ipv6_udp_novrf() sleep 1 run_cmd nettest -6 -D -r ${a} -d ${NSA_DEV} -S log_test_addr ${a} $? 1 "Global server, device client via IP_UNICAST_IF, local connection" + + log_start + show_hint "Should fail 'No route to host' since addresses on loopback are out of device scope" + run_cmd nettest -6 -D -s & + sleep 1 + run_cmd nettest -6 -D -r ${a} -d ${NSA_DEV} -S -U + log_test_addr ${a} $? 1 "Global server, device client via IP_UNICAST_IF, local connection, with connect()" done a=${NSA_IP6} diff --git a/tools/testing/selftests/net/nettest.c b/tools/testing/selftests/net/nettest.c index d9a6fd2cd9d3..7900fa98eccb 100644 --- a/tools/testing/selftests/net/nettest.c +++ b/tools/testing/selftests/net/nettest.c @@ -127,6 +127,9 @@ struct sock_args { /* ESP in UDP encap test */ int use_xfrm; + + /* use send() and connect() instead of sendto */ + int datagram_connect; }; static int server_mode; @@ -979,6 +982,11 @@ static int send_msg(int sd, void *addr, socklen_t alen, struct sock_args *args) log_err_errno("write failed sending msg to peer"); return 1; } + } else if (args->datagram_connect) { + if (send(sd, msg, msglen, 0) < 0) { + log_err_errno("send failed sending msg to peer"); + return 1; + } } else if (args->ifindex && args->use_cmsg) { if (send_msg_cmsg(sd, addr, alen, args->ifindex, args->version)) return 1; @@ -1659,7 +1667,7 @@ static int connectsock(void *addr, socklen_t alen, struct sock_args *args) if (args->has_local_ip && bind_socket(sd, args)) goto err; - if (args->type != SOCK_STREAM) + if (args->type != SOCK_STREAM && !args->datagram_connect) goto out; if (args->password && tcp_md5sig(sd, addr, alen, args)) @@ -1854,7 +1862,7 @@ static int ipc_parent(int cpid, int fd, struct sock_args *args) return client_status; } -#define GETOPT_STR "sr:l:c:p:t:g:P:DRn:M:X:m:d:I:BN:O:SCi6xL:0:1:2:3:Fbqf" +#define GETOPT_STR "sr:l:c:p:t:g:P:DRn:M:X:m:d:I:BN:O:SUCi6xL:0:1:2:3:Fbqf" #define OPT_FORCE_BIND_KEY_IFINDEX 1001 #define OPT_NO_BIND_KEY_IFINDEX 1002 @@ -1891,6 +1899,7 @@ static void print_usage(char *prog) " -I dev bind socket to given device name - server mode\n" " -S use setsockopt (IP_UNICAST_IF or IP_MULTICAST_IF)\n" " to set device binding\n" + " -U Use connect() and send() for datagram sockets\n" " -f bind socket with the IP[V6]_FREEBIND option\n" " -C use cmsg and IP_PKTINFO to specify device binding\n" "\n" @@ -2074,6 +2083,9 @@ int main(int argc, char *argv[]) case 'x': args.use_xfrm = 1; break; + case 'U': + args.datagram_connect = 1; + break; default: print_usage(argv[0]); return 1; -- 2.36.1

1 year, 8 months

3
2
0 0

[PATCH net 0/3] Unsync addresses from ports when stopping aggregated devices

by Benjamin Poirier

This series fixes similar problems in the bonding and team drivers. Because of missing dev_{uc,mc}_unsync() calls, addresses added to underlying devices may be leftover after the aggregated device is deleted. Add the missing calls and a few related tests. Benjamin Poirier (3): net: bonding: Unsync device addresses on ndo_stop net: team: Unsync device addresses on ndo_stop net: Add tests for bonding and team address list management MAINTAINERS | 1 + drivers/net/bonding/bond_main.c | 31 ++++--- drivers/net/team/team.c | 8 ++ tools/testing/selftests/Makefile | 1 + .../selftests/drivers/net/bonding/Makefile | 3 +- .../selftests/drivers/net/bonding/config | 1 + .../drivers/net/bonding/dev_addr_lists.sh | 89 +++++++++++++++++++ .../selftests/drivers/net/bonding/lag_lib.sh | 63 +++++++++++++ .../selftests/drivers/net/team/Makefile | 6 ++ .../testing/selftests/drivers/net/team/config | 3 + .../drivers/net/team/dev_addr_lists.sh | 51 +++++++++++ 11 files changed, 246 insertions(+), 11 deletions(-) create mode 100755 tools/testing/selftests/drivers/net/bonding/dev_addr_lists.sh create mode 100644 tools/testing/selftests/drivers/net/bonding/lag_lib.sh create mode 100644 tools/testing/selftests/drivers/net/team/Makefile create mode 100644 tools/testing/selftests/drivers/net/team/config create mode 100755 tools/testing/selftests/drivers/net/team/dev_addr_lists.sh -- 2.36.1

1 year, 8 months

2
6
0 0

[PATCH -next 0/5] Optimize and bugfix for cpu-on-off-test.sh

by Zhao Gongyi

1. Correct log info 2. Replace exit with return to make the test exit gracefully 3. Delete fault injection related code 4. Reserve one cpu online when the test offline all cpus 5. Add log info when run full test successfully Zhao Gongyi (5): selftests/cpu-hotplug: Correct log info selftests/cpu-hotplug: Replace exit with return selftests/cpu-hotplug: Delete fault injection related code selftests/cpu-hotplug: Reserve one cpu online at least selftests/cpu-hotplug: Add log info when test success tools/testing/selftests/cpu-hotplug/Makefile | 2 +- tools/testing/selftests/cpu-hotplug/config | 1 - .../selftests/cpu-hotplug/cpu-on-off-test.sh | 150 ++++-------------- 3 files changed, 29 insertions(+), 124 deletions(-) delete mode 100644 tools/testing/selftests/cpu-hotplug/config -- 2.17.1

1 year, 8 months

2
7
0 0

[PATCH v2 5/6] selftests/sgx: retry the ioctls returned with EAGAIN

by Jarkko Sakkinen

From: Haitao Huang <haitao.huang(a)linux.intel.com> For EMODT and EREMOVE ioctls with a large range, kernel may not finish in one shot and return EAGAIN error code and count of bytes of EPC pages on that operations are finished successfully. Change the unclobbered_vdso_oversubscribed_remove test to rerun the ioctls in a loop, updating offset and length using the byte count returned in each iteration. Signed-off-by: Haitao Huang <haitao.huang(a)linux.intel.com> Signed-off-by: Jarkko Sakkinen <jarkko(a)kernel.org> --- v2: * Changed branching in EAGAIN condition so that else branch is not required. * Addressed Reinette's feedback: https://lore.kernel.org/linux-sgx/5d19be91-3aef-5cbe-6063-3ff3dbd5572b@inte… --- tools/testing/selftests/sgx/main.c | 42 ++++++++++++++++++++++++------ 1 file changed, 34 insertions(+), 8 deletions(-) diff --git a/tools/testing/selftests/sgx/main.c b/tools/testing/selftests/sgx/main.c index c5aa9f323745..f42941da3bbe 100644 --- a/tools/testing/selftests/sgx/main.c +++ b/tools/testing/selftests/sgx/main.c @@ -395,6 +395,7 @@ TEST_F_TIMEOUT(enclave, unclobbered_vdso_oversubscribed_remove, 900) struct encl_segment *heap; unsigned long total_mem; int ret, errno_save; + unsigned long count; unsigned long addr; unsigned long i; @@ -458,16 +459,30 @@ TEST_F_TIMEOUT(enclave, unclobbered_vdso_oversubscribed_remove, 900) modt_ioc.offset = heap->offset; modt_ioc.length = heap->size; modt_ioc.page_type = SGX_PAGE_TYPE_TRIM; - + count = 0; TH_LOG("Changing type of %zd bytes to trimmed may take a while ...", heap->size); - ret = ioctl(self->encl.fd, SGX_IOC_ENCLAVE_MODIFY_TYPES, &modt_ioc); - errno_save = ret == -1 ? errno : 0; + do { + ret = ioctl(self->encl.fd, SGX_IOC_ENCLAVE_MODIFY_TYPES, &modt_ioc); + + errno_save = ret == -1 ? errno : 0; + if (errno_save != EAGAIN) + break; + + EXPECT_EQ(modt_ioc.result, 0); + + count += modt_ioc.count; + modt_ioc.offset += modt_ioc.count; + modt_ioc.length -= modt_ioc.count; + modt_ioc.result = 0; + modt_ioc.count = 0; + } while (modt_ioc.length != 0); EXPECT_EQ(ret, 0); EXPECT_EQ(errno_save, 0); EXPECT_EQ(modt_ioc.result, 0); - EXPECT_EQ(modt_ioc.count, heap->size); + count += modt_ioc.count; + EXPECT_EQ(count, heap->size); /* EACCEPT all removed pages. */ addr = self->encl.encl_base + heap->offset; @@ -495,15 +510,26 @@ TEST_F_TIMEOUT(enclave, unclobbered_vdso_oversubscribed_remove, 900) remove_ioc.offset = heap->offset; remove_ioc.length = heap->size; - + count = 0; TH_LOG("Removing %zd bytes from enclave may take a while ...", heap->size); - ret = ioctl(self->encl.fd, SGX_IOC_ENCLAVE_REMOVE_PAGES, &remove_ioc); - errno_save = ret == -1 ? errno : 0; + do { + ret = ioctl(self->encl.fd, SGX_IOC_ENCLAVE_REMOVE_PAGES, &remove_ioc); + + errno_save = ret == -1 ? errno : 0; + if (errno_save != EAGAIN) + break; + + count += remove_ioc.count; + remove_ioc.offset += remove_ioc.count; + remove_ioc.length -= remove_ioc.count; + remove_ioc.count = 0; + } while (remove_ioc.length != 0); EXPECT_EQ(ret, 0); EXPECT_EQ(errno_save, 0); - EXPECT_EQ(remove_ioc.count, heap->size); + count += remove_ioc.count; + EXPECT_EQ(count, heap->size); } TEST_F(enclave, clobbered_vdso) -- 2.37.2

1 year, 8 months

2
1
0 0

[PATCH v2 1/6] selftests/sgx: Ignore OpenSSL 3.0 deprecated functions warning

by Jarkko Sakkinen

From: Kristen Carlson Accardi <kristen(a)linux.intel.com> OpenSSL 3.0 deprecates some of the functions used in the SGX selftests, causing build errors on new distros. For now ignore the warnings until support for the functions is no longer available and mark FIXME so that it can be clear this should be removed at some point. Signed-off-by: Kristen Carlson Accardi <kristen(a)linux.intel.com> Signed-off-by: Jarkko Sakkinen <jarkko(a)kernel.org> --- v2: - Kept because does not exist in tip/x86/sgx, which is the maintainer branch for SGX, and is required for selftests. --- tools/testing/selftests/sgx/sigstruct.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/tools/testing/selftests/sgx/sigstruct.c b/tools/testing/selftests/sgx/sigstruct.c index 50c5ab1aa6fa..a07896a46364 100644 --- a/tools/testing/selftests/sgx/sigstruct.c +++ b/tools/testing/selftests/sgx/sigstruct.c @@ -17,6 +17,12 @@ #include "defines.h" #include "main.h" +/* + * FIXME: OpenSSL 3.0 has deprecated some functions. For now just ignore + * the warnings. + */ +#pragma GCC diagnostic ignored "-Wdeprecated-declarations" + struct q1q2_ctx { BN_CTX *bn_ctx; BIGNUM *m; -- 2.37.2

1 year, 8 months

1
0
0 0

[PATCH linux-next] powerpc/selftests:Use timersub() for gettimeofday()

by cgel.zte＠gmail.com

From: ye xingchen <ye.xingchen(a)zte.com.cn> Use timersub() function to simplify the code. Reported-by: Zeal Robot <zealci(a)zte.com.cn> Signed-off-by: ye xingchen <ye.xingchen(a)zte.com.cn> --- tools/testing/selftests/powerpc/benchmarks/gettimeofday.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/powerpc/benchmarks/gettimeofday.c b/tools/testing/selftests/powerpc/benchmarks/gettimeofday.c index 6b415683357b..580fcac0a09f 100644 --- a/tools/testing/selftests/powerpc/benchmarks/gettimeofday.c +++ b/tools/testing/selftests/powerpc/benchmarks/gettimeofday.c @@ -12,7 +12,7 @@ static int test_gettimeofday(void) { int i; - struct timeval tv_start, tv_end; + struct timeval tv_start, tv_end, tv_diff; gettimeofday(&tv_start, NULL); @@ -20,7 +20,9 @@ static int test_gettimeofday(void) gettimeofday(&tv_end, NULL); } - printf("time = %.6f\n", tv_end.tv_sec - tv_start.tv_sec + (tv_end.tv_usec - tv_start.tv_usec) * 1e-6); + timersub(&tv_start, &tv_end, &tv_diff); + + printf("time = %.6f\n", tv_diff.tv_sec + (tv_diff.tv_usec) * 1e-6); return 0; } -- 2.25.1

1 year, 8 months

2
1
0 0

[PATCH] selftests/sgx: Fix OpenSSL deprecated warning for ERR_get_error_line

by Dhanuka Warusadura

These changes fix the "error: ‘ERR_get_error_line’ is deprecated: Since OpenSSL 3.0" warning. Signed-off-by: Dhanuka Warusadura <wdnuka(a)gmail.com> --- tools/testing/selftests/sgx/sigstruct.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/sgx/sigstruct.c b/tools/testing/selftests/sgx/sigstruct.c index 50c5ab1aa6fa..671d9b58e274 100644 --- a/tools/testing/selftests/sgx/sigstruct.c +++ b/tools/testing/selftests/sgx/sigstruct.c @@ -136,7 +136,7 @@ static bool check_crypto_errors(void) break; had_errors = true; - err = ERR_get_error_line(&filename, &line); + err = ERR_peek_last_error_line(&filename, &line); ERR_error_string_n(err, str, sizeof(str)); fprintf(stderr, "crypto: %s: %s:%d\n", str, filename, line); } -- 2.37.2

1 year, 8 months

3
6
0 0

Copie de : Bild: Investieren Sie einmal 250 $ und erhalten Sie ab 1000 $ pro Tag

by Galerie Raymond Dreyfus

Ceci est une copie du message que vous avez envoyé à Galerie Raymond Dreyfus via Galerie Raymond Dreyfus Ceci est un message expédié via http://www.raymond-dreyfus.com/ par : JosephZem <linux-kselftest(a)vger.kernel.org> TOP 3 Handelsroboter, die Menschen zu Millionaren machen http://bitcoin-obituaries.beersec.com/dayli-news-8902

1 year, 8 months

1
0
0 0

Copie de : Bild: Investieren Sie einmal 250 $ und erhalten Sie ab 1000 $ pro Tag

by Galerie Raymond Dreyfus

Ceci est une copie du message que vous avez envoyé à Galerie Raymond Dreyfus via Galerie Raymond Dreyfus Ceci est un message expédié via http://www.raymond-dreyfus.com/ par : JosephZem <linux-kselftest(a)vger.kernel.org> TOP 3 Handelsroboter, die Menschen zu Millionaren machen http://bitcoin-obituaries.beersec.com/dayli-news-8902

1 year, 8 months

1
0
0 0

Copie de : Bild: Investieren Sie einmal 250 $ und erhalten Sie ab 1000 $ pro Tag

by Galerie Raymond Dreyfus

Ceci est une copie du message que vous avez envoyé à Galerie Raymond Dreyfus via Galerie Raymond Dreyfus Ceci est un message expédié via http://www.raymond-dreyfus.com/ par : JosephZem <linux-kselftest(a)vger.kernel.org> TOP 3 Handelsroboter, die Menschen zu Millionaren machen http://bitcoin-obituaries.beersec.com/dayli-news-8902

1 year, 8 months

1
0
0 0

2024

2023

2022

2021

2020

2019

2018

2017

Linux-kselftest-mirror August 2022