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Use a single UDP port in the server.

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Several modifications to use a single UDP port in the server. This
is currently done using a hack, i.e., pass the UDP socket to worker,
close it on the main server and then re-open it (using REUSEADDR).

Also several updates in TUN handling to allow more than one clients connecting.
This commit is contained in:
Nikos Mavrogiannopoulos
2013-02-07 17:49:51 +01:00
parent dd31208d4a
commit 1cb7ab38e9
18 changed files with 547 additions and 363 deletions
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src/worker-auth.c
+13 -4
View File
@@ -157,8 +157,7 @@ static int recv_auth_reply(worker_st *ws)
uint8_t cmd = 0;
struct cmd_auth_reply_st resp;
struct msghdr hdr;
int ret;
int ret, cmdlen;
union {
struct cmsghdr cm;
char control[CMSG_SPACE(sizeof(int))];
@@ -179,15 +178,25 @@ static int recv_auth_reply(worker_st *ws)
hdr.msg_controllen = sizeof(control_un.control);
ret = recvmsg( ws->cmd_fd, &hdr, 0);
if (ret < sizeof(resp)+1) {
oclog(ws, LOG_ERR, "Received incorrect data (%d, expected %d) from main", ret, (int)sizeof(resp)+1);
cmdlen = ret;
if (cmdlen < 2) {
oclog(ws, LOG_ERR, "Received incorrect data (%d, expected %d) from main", cmdlen, (int)2);
return -1;
}
if (cmd != AUTH_REP)
return -1;
cmdlen--;
switch(resp.reply) {
case REP_AUTH_OK:
if (cmdlen < sizeof(resp)) {
oclog(ws, LOG_ERR, "Received incorrect data (%d, expected %d) from main", ret, (int)sizeof(resp)+1);
return -1;
}
if ( (cmptr = CMSG_FIRSTHDR(&hdr)) != NULL && cmptr->cmsg_len == CMSG_LEN(sizeof(int))) {
if (cmptr->cmsg_level != SOL_SOCKET)
return -1;