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[bpf-next,07/15] selftests/bpf: AF_ALG support for make_sockaddr

Message ID 50e333e776a5b33393bdf51d24053bf091784402.1721771340.git.tanggeliang@kylinos.cn (mailing list archive)
State New, archived
Delegated to: BPF
Headers show
Series use network helpers, part 11 | expand

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Commit Message

Geliang Tang July 23, 2024, 10:22 p.m. UTC 
From: Geliang Tang <tanggeliang@kylinos.cn>

This patch adds AF_ALG support for make_sockaddr(), uses sscanf()
to parse the given addr_str string to "salg_type" and "salg_name"
of struct sockaddr_alg.

Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn>
---
 tools/testing/selftests/bpf/network_helpers.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
diff mbox series

Patch

diff --git a/tools/testing/selftests/bpf/network_helpers.c b/tools/testing/selftests/bpf/network_helpers.c
index a6c158718267..8f39adbc2c16 100644
--- a/tools/testing/selftests/bpf/network_helpers.c
+++ b/tools/testing/selftests/bpf/network_helpers.c
@@ -17,6 +17,7 @@ 
 #include <linux/in.h>
 #include <linux/in6.h>
 #include <linux/limits.h>
+#include <linux/if_alg.h>
 
 #include "bpf_util.h"
 #include "network_helpers.h"
@@ -468,6 +469,20 @@  int make_sockaddr(int family, const char *addr_str, __u16 port,
 		if (len)
 			*len = sizeof(*sll);
 		return 0;
+	} else if (family == AF_ALG) {
+		struct sockaddr_alg *salg = (void *)addr;
+
+		memset(addr, 0, sizeof(*salg));
+		salg->salg_family = family;
+		if (addr_str &&
+		    sscanf(addr_str, "%s %s",
+			   salg->salg_type, salg->salg_name) == -1) {
+			log_err("AF_ALG sscanf(%s)", addr_str);
+			return -1;
+		}
+		if (len)
+			*len = sizeof(*salg);
+		return 0;
 	}
 	return -1;
 }