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

[Geliang Tang]

From: Geliang Tang <tanggeli...@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 <tanggeli...@kylinos.cn>
---
 tools/testing/selftests/bpf/network_helpers.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

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;
 }
-- 
2.43.0