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bpf: selftests: Add fastopen_connect to network_helpers 

This patch adds a fastopen_connect() helper which will
be used in a later test.

Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200820190111.2886196-1-kafai@fb.com
This commit is contained in:
Martin KaFai Lau 2020-08-20 12:01:11 -07:00 committed by Alexei Starovoitov
parent 0813a84156
commit 8085e1dc1f
2 changed files with 39 additions and 0 deletions
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37
tools/testing/selftests/bpf/network_helpers.c
View File

@ -104,6 +104,43 @@ error_close:
return -1;
}
int fastopen_connect(int server_fd, const char *data, unsigned int data_len,
int timeout_ms)
{
struct sockaddr_storage addr;
socklen_t addrlen = sizeof(addr);
struct sockaddr_in *addr_in;
int fd, ret;
if (getsockname(server_fd, (struct sockaddr *)&addr, &addrlen)) {
log_err("Failed to get server addr");
return -1;
}
addr_in = (struct sockaddr_in *)&addr;
fd = socket(addr_in->sin_family, SOCK_STREAM, 0);
if (fd < 0) {
log_err("Failed to create client socket");
return -1;
}
if (settimeo(fd, timeout_ms))
goto error_close;
ret = sendto(fd, data, data_len, MSG_FASTOPEN, (struct sockaddr *)&addr,
addrlen);
if (ret != data_len) {
log_err("sendto(data, %u) != %d\n", data_len, ret);
goto error_close;
}
return fd;
error_close:
save_errno_close(fd);
return -1;
}
static int connect_fd_to_addr(int fd,
const struct sockaddr_storage *addr,
socklen_t addrlen)

2
tools/testing/selftests/bpf/network_helpers.h
View File

@ -37,6 +37,8 @@ int start_server(int family, int type, const char *addr, __u16 port,
int timeout_ms);
int connect_to_fd(int server_fd, int timeout_ms);
int connect_fd_to_fd(int client_fd, int server_fd, int timeout_ms);
int fastopen_connect(int server_fd, const char *data, unsigned int data_len,
int timeout_ms);
int make_sockaddr(int family, const char *addr_str, __u16 port,
struct sockaddr_storage *addr, socklen_t *len);