diff mbox series

[RFC,bpf-next,v2,08/11] selftests/bpf: Add helper to query current netns cookie

Message ID 20230621170244.1283336-9-sdf@google.com (mailing list archive)
State RFC
Delegated to: BPF
Headers show
Series bpf: Netdev TX metadata | expand

Checks

Context Check Description
bpf/vmtest-bpf-next-PR fail PR summary
bpf/vmtest-bpf-next-VM_Test-1 success Logs for ${{ matrix.test }} on ${{ matrix.arch }} with ${{ matrix.toolchain_full }}
bpf/vmtest-bpf-next-VM_Test-2 success Logs for ShellCheck
bpf/vmtest-bpf-next-VM_Test-3 fail Logs for build for aarch64 with gcc
bpf/vmtest-bpf-next-VM_Test-4 fail Logs for build for s390x with gcc
bpf/vmtest-bpf-next-VM_Test-5 fail Logs for build for x86_64 with gcc
bpf/vmtest-bpf-next-VM_Test-6 fail Logs for build for x86_64 with llvm-16
bpf/vmtest-bpf-next-VM_Test-7 success Logs for set-matrix
bpf/vmtest-bpf-next-VM_Test-8 success Logs for veristat
netdev/series_format success Posting correctly formatted
netdev/tree_selection success Clearly marked for bpf-next, async
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit fail Errors and warnings before: 13 this patch: 13
netdev/cc_maintainers warning 3 maintainers not CCed: mykolal@fb.com shuah@kernel.org linux-kselftest@vger.kernel.org
netdev/build_clang fail Errors and warnings before: 13 this patch: 13
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn fail Errors and warnings before: 13 this patch: 13
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 31 lines checked
netdev/kdoc success Errors and warnings before: 1 this patch: 1
netdev/source_inline success Was 0 now: 0

Commit Message

Stanislav Fomichev June 21, 2023, 5:02 p.m. UTC 
Will be used by the subsequent selftests.

Signed-off-by: Stanislav Fomichev <sdf@google.com>
---
 tools/testing/selftests/bpf/network_helpers.c | 21 +++++++++++++++++++
 tools/testing/selftests/bpf/network_helpers.h |  1 +
 2 files changed, 22 insertions(+)
diff mbox series

Patch

diff --git a/tools/testing/selftests/bpf/network_helpers.c b/tools/testing/selftests/bpf/network_helpers.c
index a105c0cd008a..34102fce5a88 100644
--- a/tools/testing/selftests/bpf/network_helpers.c
+++ b/tools/testing/selftests/bpf/network_helpers.c
@@ -450,3 +450,24 @@  int get_socket_local_port(int sock_fd)
 
 	return -1;
 }
+
+#ifndef SO_NETNS_COOKIE
+#define SO_NETNS_COOKIE 71
+#endif
+
+__u64 get_net_cookie(void)
+{
+	socklen_t optlen;
+	__u64 optval = 0;
+	int fd;
+
+	fd = socket(AF_LOCAL, SOCK_DGRAM, 0);
+	if (fd >= 0) {
+		optlen = sizeof(optval);
+		getsockopt(fd, SOL_SOCKET, SO_NETNS_COOKIE, &optval, &optlen);
+		close(fd);
+	}
+
+	return optval;
+}
+
diff --git a/tools/testing/selftests/bpf/network_helpers.h b/tools/testing/selftests/bpf/network_helpers.h
index 694185644da6..380047161aac 100644
--- a/tools/testing/selftests/bpf/network_helpers.h
+++ b/tools/testing/selftests/bpf/network_helpers.h
@@ -57,6 +57,7 @@  int make_sockaddr(int family, const char *addr_str, __u16 port,
 		  struct sockaddr_storage *addr, socklen_t *len);
 char *ping_command(int family);
 int get_socket_local_port(int sock_fd);
+__u64 get_net_cookie(void);
 
 struct nstoken;
 /**