diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/libsystemd-dhcp/dhcp-internal.h | 3 | ||||
| -rw-r--r-- | src/libsystemd-dhcp/dhcp-network.c | 36 | ||||
| -rw-r--r-- | src/libsystemd-dhcp/test-dhcp-client.c | 11 |
3 files changed, 50 insertions, 0 deletions
diff --git a/src/libsystemd-dhcp/dhcp-internal.h b/src/libsystemd-dhcp/dhcp-internal.h index 4472d95095..43b5b1d000 100644 --- a/src/libsystemd-dhcp/dhcp-internal.h +++ b/src/libsystemd-dhcp/dhcp-internal.h @@ -29,8 +29,11 @@ #include "dhcp-protocol.h" int dhcp_network_bind_raw_socket(int index, union sockaddr_union *link); +int dhcp_network_bind_udp_socket(int index, be32_t client_address); int dhcp_network_send_raw_socket(int s, const union sockaddr_union *link, const void *packet, size_t len); +int dhcp_network_send_udp_socket(int s, be32_t server_address, + const void *packet, size_t len); int dhcp_option_append(uint8_t **buf, size_t *buflen, uint8_t code, size_t optlen, const void *optval); diff --git a/src/libsystemd-dhcp/dhcp-network.c b/src/libsystemd-dhcp/dhcp-network.c index 7fecf270f8..ce27f425c3 100644 --- a/src/libsystemd-dhcp/dhcp-network.c +++ b/src/libsystemd-dhcp/dhcp-network.c @@ -53,6 +53,27 @@ int dhcp_network_bind_raw_socket(int index, union sockaddr_union *link) return s; } +int dhcp_network_bind_udp_socket(int index, be32_t client_address) +{ + int s; + union sockaddr_union src = { + .in.sin_family = AF_INET, + .in.sin_port = htobe16(DHCP_PORT_CLIENT), + .in.sin_addr.s_addr = client_address, + }; + + s = socket(AF_INET, SOCK_DGRAM | SOCK_CLOEXEC | SOCK_NONBLOCK, 0); + if (s < 0) + return -errno; + + if (bind(s, &src.sa, sizeof(src.in)) < 0) { + close_nointr_nofail(s); + return -errno; + } + + return s; +} + int dhcp_network_send_raw_socket(int s, const union sockaddr_union *link, const void *packet, size_t len) { @@ -61,3 +82,18 @@ int dhcp_network_send_raw_socket(int s, const union sockaddr_union *link, return 0; } + +int dhcp_network_send_udp_socket(int s, be32_t server_address, + const void *packet, size_t len) +{ + union sockaddr_union dest = { + .in.sin_family = AF_INET, + .in.sin_port = htobe16(DHCP_PORT_SERVER), + .in.sin_addr.s_addr = server_address, + }; + + if (sendto(s, packet, len, 0, &dest.sa, sizeof(dest.in)) < 0) + return -errno; + + return 0; +} diff --git a/src/libsystemd-dhcp/test-dhcp-client.c b/src/libsystemd-dhcp/test-dhcp-client.c index 1ff78c1144..617236b5df 100644 --- a/src/libsystemd-dhcp/test-dhcp-client.c +++ b/src/libsystemd-dhcp/test-dhcp-client.c @@ -184,6 +184,17 @@ int dhcp_network_bind_raw_socket(int index, union sockaddr_union *link) return test_fd[0]; } +int dhcp_network_bind_udp_socket(int index, be32_t client_address) +{ + return 0; +} + +int dhcp_network_send_udp_socket(int s, be32_t server_address, + const void *packet, size_t len) +{ + return 0; +} + static void test_discover_message(sd_event *e) { sd_dhcp_client *client; |