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sd-dhcp: network - don't hardcode ports

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We want to reuse these functions for the server library too.
This commit is contained in:
Tom Gundersen 2014-02-14 17:23:58 +01:00
parent 818dc5e72a
commit 080ab27621
4 changed files with 13 additions and 11 deletions
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4
src/libsystemd-dhcp/dhcp-internal.h
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@ -30,10 +30,10 @@
#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_bind_udp_socket(int index, be32_t address, uint16_t port);
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,
int dhcp_network_send_udp_socket(int s, be32_t address, uint16_t port,
const void *packet, size_t len);
int dhcp_option_append(uint8_t **buf, size_t *buflen, uint8_t code,

12
src/libsystemd-dhcp/dhcp-network.c
View File

@ -56,13 +56,13 @@ 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 dhcp_network_bind_udp_socket(int index, be32_t address, uint16_t port)
{
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,
.in.sin_port = htobe16(port),
.in.sin_addr.s_addr = address,
};
s = socket(AF_INET, SOCK_DGRAM | SOCK_CLOEXEC | SOCK_NONBLOCK, 0);
@ -90,13 +90,13 @@ 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,
int dhcp_network_send_udp_socket(int s, be32_t address, uint16_t port,
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,
.in.sin_port = htobe16(port),
.in.sin_addr.s_addr = address,
};
if (sendto(s, packet, len, 0, &dest.sa, sizeof(dest.in)) < 0)

4
src/libsystemd-dhcp/sd-dhcp-client.c
View File

@ -324,6 +324,7 @@ static int client_send_request(sd_dhcp_client *client, uint16_t secs) {
if (client->state == DHCP_STATE_RENEWING) {
err = dhcp_network_send_udp_socket(client->fd,
client->lease->server_address,
DHCP_PORT_SERVER,
&request->dhcp,
len - DHCP_IP_UDP_SIZE);
} else {
@ -535,7 +536,8 @@ static int client_timeout_t1(sd_event_source *s, uint64_t usec,
client->attempt = 1;
r = dhcp_network_bind_udp_socket(client->index,
client->lease->address);
client->lease->address,
DHCP_PORT_CLIENT);
if (r < 0) {
client_stop(client, r);
return 0;

4
src/libsystemd-dhcp/test-dhcp-client.c
View File

@ -191,12 +191,12 @@ 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)
int dhcp_network_bind_udp_socket(int index, be32_t address, uint16_t port)
{
return 0;
}
int dhcp_network_send_udp_socket(int s, be32_t server_address,
int dhcp_network_send_udp_socket(int s, be32_t address, uint16_t port,
const void *packet, size_t len)
{
return 0;