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authorRob Landley2006-05-28 01:06:36 +0000
committerRob Landley2006-05-28 01:06:36 +0000
commit3f78561d63290c53ca8bb3cd6314ca7357a617ee (patch)
tree03b3973eeaee9635c77c21028133374d66f2aa18 /networking/udhcp/packet.c
parent8fba99f35e46d234b47d652225bb80846cae369c (diff)
downloadbusybox-3f78561d63290c53ca8bb3cd6314ca7357a617ee.zip
busybox-3f78561d63290c53ca8bb3cd6314ca7357a617ee.tar.gz
My first bout of untangling udhcp. Make lots of gratuitous #defines go
away, substitutie BB_VER for an external VERSION, use busybox CONFIG symbols rather than checking for them then defining others, etc. Lots more cleanup to do...
Diffstat (limited to 'networking/udhcp/packet.c')
-rw-r--r--networking/udhcp/packet.c14
1 files changed, 7 insertions, 7 deletions
diff --git a/networking/udhcp/packet.c b/networking/udhcp/packet.c
index ae06d53..8cf9fe2 100644
--- a/networking/udhcp/packet.c
+++ b/networking/udhcp/packet.c
@@ -20,7 +20,7 @@
#include "options.h"
-void init_header(struct dhcpMessage *packet, char type)
+void udhcp_init_header(struct dhcpMessage *packet, char type)
{
memset(packet, 0, sizeof(struct dhcpMessage));
switch (type) {
@@ -44,7 +44,7 @@ void init_header(struct dhcpMessage *packet, char type)
/* read a packet from socket fd, return -1 on read error, -2 on packet error */
-int get_packet(struct dhcpMessage *packet, int fd)
+int udhcp_get_packet(struct dhcpMessage *packet, int fd)
{
static const char broken_vendors[][8] = {
"MSFT 98",
@@ -82,7 +82,7 @@ int get_packet(struct dhcpMessage *packet, int fd)
}
-uint16_t checksum(void *addr, int count)
+uint16_t udhcp_checksum(void *addr, int count)
{
/* Compute Internet Checksum for "count" bytes
* beginning at location "addr".
@@ -113,7 +113,7 @@ uint16_t checksum(void *addr, int count)
/* Construct a ip/udp header for a packet, and specify the source and dest hardware address */
-int raw_packet(struct dhcpMessage *payload, uint32_t source_ip, int source_port,
+int udhcp_raw_packet(struct dhcpMessage *payload, uint32_t source_ip, int source_port,
uint32_t dest_ip, int dest_port, uint8_t *dest_arp, int ifindex)
{
int fd;
@@ -148,13 +148,13 @@ int raw_packet(struct dhcpMessage *payload, uint32_t source_ip, int source_port,
packet.udp.len = htons(sizeof(packet.udp) + sizeof(struct dhcpMessage)); /* cheat on the psuedo-header */
packet.ip.tot_len = packet.udp.len;
memcpy(&(packet.data), payload, sizeof(struct dhcpMessage));
- packet.udp.check = checksum(&packet, sizeof(struct udp_dhcp_packet));
+ packet.udp.check = udhcp_checksum(&packet, sizeof(struct udp_dhcp_packet));
packet.ip.tot_len = htons(sizeof(struct udp_dhcp_packet));
packet.ip.ihl = sizeof(packet.ip) >> 2;
packet.ip.version = IPVERSION;
packet.ip.ttl = IPDEFTTL;
- packet.ip.check = checksum(&(packet.ip), sizeof(packet.ip));
+ packet.ip.check = udhcp_checksum(&(packet.ip), sizeof(packet.ip));
result = sendto(fd, &packet, sizeof(struct udp_dhcp_packet), 0, (struct sockaddr *) &dest, sizeof(dest));
if (result <= 0) {
@@ -166,7 +166,7 @@ int raw_packet(struct dhcpMessage *payload, uint32_t source_ip, int source_port,
/* Let the kernel do all the work for packet generation */
-int kernel_packet(struct dhcpMessage *payload, uint32_t source_ip, int source_port,
+int udhcp_kernel_packet(struct dhcpMessage *payload, uint32_t source_ip, int source_port,
uint32_t dest_ip, int dest_port)
{
int n = 1;