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ead: allow the client to override the source ip of the server, so that it can work with route filtering properly

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@13883 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nbd 2009-01-06 14:08:07 +00:00
parent 67f1074730
commit 555b1af398
3 changed files with 15 additions and 4 deletions
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14
package/ead/src/ead-client.c
View File

@ -44,6 +44,9 @@ static uint16_t nid = 0xffff;
struct sockaddr_in local, remote;
static int s = 0;
static int sockflags;
static struct in_addr serverip = {
.s_addr = 0x01010101 /* dummy */
};
static unsigned char *skey = NULL;
static unsigned char bbuf[MAXPARAMLEN];
@ -80,6 +83,7 @@ send_packet(int type, bool (*handler)(void), unsigned int max)
int res = 0;
type = htonl(type);
memcpy(&msg->ip, &serverip.s_addr, sizeof(msg->ip));
set_nonblock(0);
sendto(s, msgbuf, sizeof(struct ead_msg) + ntohl(msg->len), 0, (struct sockaddr *) &remote, sizeof(remote));
set_nonblock(1);
@ -294,8 +298,9 @@ send_command(const char *command)
static int
usage(const char *prog)
{
fprintf(stderr, "Usage: %s [-b <addr>] <node> <username>[:<password>] <command>\n"
fprintf(stderr, "Usage: %s [-s <addr>] [-b <addr>] <node> <username>[:<password>] <command>\n"
"\n"
"\t-s <addr>: Set the server's source address to <addr>\n"
"\t-b <addr>: Set the broadcast address to <addr>\n"
"\t<node>: Node ID (4 digits hex)\n"
"\t<username>: Username to authenticate with\n"
@ -328,11 +333,16 @@ int main(int argc, char **argv)
local.sin_addr.s_addr = INADDR_ANY;
local.sin_port = 0;
while ((ch = getopt(argc, argv, "b:")) != -1) {
while ((ch = getopt(argc, argv, "b:s:h")) != -1) {
switch(ch) {
case 's':
inet_aton(optarg, &serverip);
break;
case 'b':
inet_aton(optarg, &remote.sin_addr);
break;
case 'h':
return usage(prog);
}
}
argv += optind;

2
package/ead/src/ead.c
View File

@ -250,7 +250,7 @@ ead_send_packet_clone(struct ead_packet *pkt)
len = sizeof(struct ead_packet) - sizeof(struct ether_header) + ntohl(pktbuf->msg.len);
pktbuf->len[0] = len >> 8;
pktbuf->len[1] = len & 0xff;
memcpy(pktbuf->srcipaddr, pkt->destipaddr, 4);
memcpy(pktbuf->srcipaddr, &pkt->msg.ip, 4);
memcpy(pktbuf->destipaddr, pkt->srcipaddr, 4);
/* ip checksum */

3
package/ead/src/ead.h
View File

@ -14,7 +14,7 @@
#ifndef __EAD_H
#define __EAD_H
#define EAD_DEBUGLEVEL 2
#define EAD_DEBUGLEVEL 1
#include <stdint.h>
#include <stddef.h>
@ -120,6 +120,7 @@ struct ead_msg {
uint32_t type;
uint16_t nid; /* node id */
uint16_t tid; /* transaction id */
uint32_t ip; /* source ip for responses from the server */
union {
struct ead_msg_pong pong;
struct ead_msg_user user;