diff options
| author | Tom Gundersen <teg@jklm.no> | 2014-02-14 11:58:41 +0100 |
|---|---|---|
| committer | Tom Gundersen <teg@jklm.no> | 2014-02-15 12:14:45 +0100 |
| commit | 0bfedf143c72005cb540ddcaf9a8630844e381f8 (patch) | |
| tree | d6118ab5a5bb283d155c24185252f2ace8aa0a6d /src | |
| parent | e5002702716b047c3d5515aaeecc5b829db02aa4 (diff) | |
sd-dhcp: minimum options size is part of the protocol
Diffstat (limited to 'src')
| -rw-r--r-- | src/libsystemd-dhcp/dhcp-protocol.h | 1 | ||||
| -rw-r--r-- | src/libsystemd-dhcp/sd-dhcp-client.c | 12 |
2 files changed, 6 insertions, 7 deletions
diff --git a/src/libsystemd-dhcp/dhcp-protocol.h b/src/libsystemd-dhcp/dhcp-protocol.h index abdfe8d54..81d36cef2 100644 --- a/src/libsystemd-dhcp/dhcp-protocol.h +++ b/src/libsystemd-dhcp/dhcp-protocol.h @@ -58,6 +58,7 @@ typedef struct DHCPPacket DHCPPacket; #define DHCP_IP_SIZE (int32_t)(sizeof(struct iphdr)) #define DHCP_IP_UDP_SIZE (int32_t)(sizeof(struct udphdr) + DHCP_IP_SIZE) #define DHCP_MESSAGE_SIZE (int32_t)(sizeof(DHCPMessage)) +#define DHCP_MIN_OPTIONS_SIZE 312 enum { DHCP_PORT_SERVER = 67, diff --git a/src/libsystemd-dhcp/sd-dhcp-client.c b/src/libsystemd-dhcp/sd-dhcp-client.c index 39c2eebff..bff35885f 100644 --- a/src/libsystemd-dhcp/sd-dhcp-client.c +++ b/src/libsystemd-dhcp/sd-dhcp-client.c @@ -32,8 +32,6 @@ #include "dhcp-internal.h" #include "sd-dhcp-client.h" -#define DHCP_CLIENT_MIN_OPTIONS_SIZE 312 - struct sd_dhcp_client { DHCPState state; sd_event *event; @@ -237,7 +235,7 @@ static int client_message_init(sd_dhcp_client *client, DHCPMessage *message, defined default size unless the Maximum Messge Size option is explicitely set */ max_size = htobe16(DHCP_IP_UDP_SIZE + DHCP_MESSAGE_SIZE + - DHCP_CLIENT_MIN_OPTIONS_SIZE); + DHCP_MIN_OPTIONS_SIZE); r = dhcp_option_append(opt, optlen, DHCP_OPTION_MAXIMUM_MESSAGE_SIZE, 2, &max_size); @@ -254,7 +252,7 @@ static int client_send_discover(sd_dhcp_client *client, uint16_t secs) { size_t optlen, len; uint8_t *opt; - optlen = DHCP_CLIENT_MIN_OPTIONS_SIZE; + optlen = DHCP_MIN_OPTIONS_SIZE; len = sizeof(DHCPPacket) + optlen; discover = malloc0(len); @@ -293,7 +291,7 @@ static int client_send_request(sd_dhcp_client *client, uint16_t secs) { int err; uint8_t *opt; - optlen = DHCP_CLIENT_MIN_OPTIONS_SIZE; + optlen = DHCP_MIN_OPTIONS_SIZE; len = DHCP_MESSAGE_SIZE + optlen; request = malloc0(len); @@ -801,7 +799,7 @@ error: static int client_receive_message_raw(sd_event_source *s, int fd, uint32_t revents, void *userdata) { sd_dhcp_client *client = userdata; - uint8_t buf[sizeof(DHCPMessage) + DHCP_CLIENT_MIN_OPTIONS_SIZE]; + uint8_t buf[sizeof(DHCPMessage) + DHCP_MIN_OPTIONS_SIZE]; int buflen = sizeof(buf); int len, r = 0; usec_t time_now; @@ -825,7 +823,7 @@ static int client_receive_message_raw(sd_event_source *s, int fd, static int client_receive_message_udp(sd_event_source *s, int fd, uint32_t revents, void *userdata) { sd_dhcp_client *client = userdata; - uint8_t buf[sizeof(DHCPPacket) + DHCP_CLIENT_MIN_OPTIONS_SIZE]; + uint8_t buf[sizeof(DHCPPacket) + DHCP_MIN_OPTIONS_SIZE]; int buflen = sizeof(buf); int len, r = 0; DHCPPacket *packet; |