sockilist_find_reply_socket works now for IPv6
For IPv6 and IPv4 a socket with a good port is chosen for reply. FossilOrigin-Name: 87778f4dd8978b40a3b818efcd610c845ee990337c74ce53b42f12cc2ed4dc2e
This commit is contained in:
7u83@mail.ru
parent
e5161784d1
commit
883afba4fe
@ -32,23 +32,27 @@
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#include "socklist.h"
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struct socklistelem * socklist=0;
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#include "stdio.h"
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struct socklistelem *socklist = 0;
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int socklist_len;
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static pthread_mutex_t socklist_mutex;
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static int socklist_wtpcount=0;
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static int socklist_wtpcount = 0;
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int socklist_init()
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{
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if (pthread_mutex_init(&socklist_mutex,NULL))
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if (pthread_mutex_init(&socklist_mutex, NULL))
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return 0;
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socklist = malloc(sizeof(struct socklistelem) * SOCKLIST_SIZE);
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memset(socklist,0,sizeof(struct socklistelem) * SOCKLIST_SIZE);
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if (!socklist){
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cw_log(LOG_ERR,"Fatal error while initializing socklist: %s",strerror(errno));
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memset(socklist, 0, sizeof(struct socklistelem) * SOCKLIST_SIZE);
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if (!socklist) {
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cw_log(LOG_ERR, "Fatal error while initializing socklist: %s",
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strerror(errno));
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return 0;
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}
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@ -70,11 +74,11 @@ void socklist_unlock()
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void socklist_destroy()
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{
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int i;
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for(i=0; i<socklist_len; i++){
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for (i = 0; i < socklist_len; i++) {
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close(socklist[i].sockfd);
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}
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free(socklist);
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socklist=0;
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socklist = 0;
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pthread_mutex_destroy(&socklist_mutex);
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}
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@ -84,71 +88,95 @@ void socklist_destroy()
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* @param sa source address
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* @return socket or -1 if no socket was found
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*/
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int socklist_find_reply_socket(struct sockaddr *sa)
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int socklist_find_reply_socket(struct sockaddr *sa,int port)
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{
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int bestsockfd=-1;
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int bestindex = -1;
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int i;
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for (i=0; i<socklist_len;i++){
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/* we can only determine a reply socket for IPv4 */
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if (socklist[i].addr.sa_family != AF_INET)
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continue;
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/* and we want only a unicast socket for reply */
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for (i = 0; i < socklist_len; i++) {
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/* we want only an unicast socket for reply */
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if (socklist[i].type != SOCKLIST_UNICAST_SOCKET)
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continue;
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/* the first fd would be always the best if don't
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/* and we want only sockets with same sa_family */
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if (sa->sa_family != socklist[i].addr.sa_family)
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continue;
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/* the first fd would be always the best, if we don't
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* find later a better one */
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if (bestsockfd == -1){
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bestsockfd = socklist[i].sockfd;
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if (bestindex == -1) {
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bestindex = i;
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continue;
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}
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/* we want first the same port */
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if( sock_getport(&socklist[i].addr) != port){
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continue;
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}
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/* if we havn't already found a socket with same port
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* this is now our best socket*/
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if( sock_getport(&socklist[bestindex].addr) != port){
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bestindex=i;
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}
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/* the next checks only aply to IPv4 */
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if (socklist[i].addr.sa_family != AF_INET)
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continue;
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/* get our source address and netmask */
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uint32_t addr = ((struct sockaddr_in*)&socklist[i].addr)->sin_addr.s_addr;
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uint32_t mask = ((struct sockaddr_in*)&socklist[i].netmask)->sin_addr.s_addr;
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uint32_t addr =
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((struct sockaddr_in *) &socklist[i].addr)->sin_addr.s_addr;
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uint32_t mask =
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((struct sockaddr_in *) &socklist[i].netmask)->sin_addr.s_addr;
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/* get source of requested address */
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uint32_t saddr = ((struct sockaddr_in*)sa)->sin_addr.s_addr;
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uint32_t saddr = ((struct sockaddr_in *) sa)->sin_addr.s_addr;
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if ( (addr & mask)== (saddr & mask) ){
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bestsockfd = socklist[i].sockfd;
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if ((addr & mask) == (saddr & mask)) {
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bestindex = i;
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}
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}
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return bestsockfd;
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if (bestindex != -1)
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return socklist[bestindex].sockfd;
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return -1;
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}
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static int find_reply_socket(struct sockaddr *sa,int bc)
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static int find_reply_socket(struct sockaddr *sa, int bc)
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{
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//printf("Looking for best sock of: %s\n",sock_addr2str(sa));
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int bestsockfd = -1;
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int i;
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for (i=0; i<socklist_len; i++){
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for (i = 0; i < socklist_len; i++) {
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struct sockaddr_storage sn;
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memset(&sn,0,sizeof(sn));
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memset(&sn, 0, sizeof(sn));
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unsigned int snlen = sizeof(struct sockaddr_storage);
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if (getsockname(socklist[i].sockfd,(struct sockaddr*)&sn,&snlen)<0){
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if (getsockname(socklist[i].sockfd, (struct sockaddr *) &sn, &snlen) < 0) {
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continue;
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}
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if (sa->sa_family!=sn.ss_family)
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if (sa->sa_family != sn.ss_family)
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continue;
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if (sn.ss_family == AF_INET){
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int p1 = ntohs(((struct sockaddr_in *)sa)->sin_port);
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int p2 = ntohs(((struct sockaddr_in *)&sn)->sin_port);
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if (sn.ss_family == AF_INET) {
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int p1 = ntohs(((struct sockaddr_in *) sa)->sin_port);
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int p2 = ntohs(((struct sockaddr_in *) &sn)->sin_port);
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if (p1 != p2)
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continue;
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}
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@ -161,16 +189,17 @@ static int find_reply_socket(struct sockaddr *sa,int bc)
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struct sockaddr_storage bcaddr;
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if (!sock_getbroadcastaddr((struct sockaddr*)&sn,(struct sockaddr*)&bcaddr))
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if (!sock_getbroadcastaddr
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((struct sockaddr *) &sn, (struct sockaddr *) &bcaddr))
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continue;
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if (sock_cmpaddr((struct sockaddr*)&bcaddr,sa,0))
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if (sock_cmpaddr((struct sockaddr *) &bcaddr, sa, 0))
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continue;
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bestsockfd = socklist[i].sockfd;
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}
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}
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return bestsockfd;
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}
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@ -192,93 +221,102 @@ void socklist_del_connection(int index)
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int socklist_add_multicast(const char * addr, const char * port,int ac_proto)
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int socklist_add_multicast(const char *addr, const char *port, int ac_proto)
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{
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struct addrinfo hints;
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struct addrinfo * res,*res0;
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memset(&hints,0,sizeof(hints));
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struct addrinfo *res, *res0;
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memset(&hints, 0, sizeof(hints));
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hints.ai_socktype = SOCK_DGRAM;
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hints.ai_family = PF_UNSPEC;
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hints.ai_flags=AI_PASSIVE;
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hints.ai_flags = AI_PASSIVE;
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int rc = getaddrinfo(addr,port,&hints,&res0);
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if (rc!=0) {
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cw_log(LOG_ERR,"Can't bind multicast address '%s': %s",addr,gai_strerror(rc));
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int rc = getaddrinfo(addr, port, &hints, &res0);
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if (rc != 0) {
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cw_log(LOG_ERR, "Can't bind multicast address '%s': %s", addr,
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gai_strerror(rc));
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return 0;
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}
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for(res=res0; res; res=res->ai_next){
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for (res = res0; res; res = res->ai_next) {
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struct sockaddr *sa = res->ai_addr;
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int sockfd = socket(res->ai_addr->sa_family, SOCK_DGRAM, 0);
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/* create socket */
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if (sockfd==-1){
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cw_log(LOG_ERR,"Can't create multicast socket: %",strerror(errno));
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if (sockfd == -1) {
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cw_log(LOG_ERR, "Can't create multicast socket: %",
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strerror(errno));
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continue;
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}
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/* bind address */
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if ( bind(sockfd,sa,sock_addrlen(sa)) < 0) {
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if (bind(sockfd, sa, sock_addrlen(sa)) < 0) {
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close(sockfd);
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cw_log(LOG_ERR,"Can't bind multicast %s: %s",addr,strerror(errno));
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cw_log(LOG_ERR, "Can't bind multicast %s: %s", addr,
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strerror(errno));
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continue;
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}
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/* use setsockopt() to request that the kernel joins a multicast group */
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void *opt;
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int optlen;
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if (res->ai_addr->sa_family == AF_INET){
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if (res->ai_addr->sa_family == AF_INET) {
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struct ip_mreq mreq;
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memset(&mreq,0,sizeof(mreq));
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struct sockaddr_in * sain = (struct sockaddr_in*)res->ai_addr;
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mreq.imr_multiaddr.s_addr=sain->sin_addr.s_addr;
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mreq.imr_interface.s_addr=htonl(INADDR_ANY);
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memset(&mreq, 0, sizeof(mreq));
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struct sockaddr_in *sain = (struct sockaddr_in *) res->ai_addr;
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mreq.imr_multiaddr.s_addr = sain->sin_addr.s_addr;
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mreq.imr_interface.s_addr = htonl(INADDR_ANY);
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opt = &mreq;
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optlen=sizeof(mreq);
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optlen = sizeof(mreq);
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char sinin[100];
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sock_addrtostr((struct sockaddr*)sain,sinin,100);
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sock_addrtostr((struct sockaddr *) sain, sinin, 100);
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if (setsockopt(sockfd,IPPROTO_IP,IP_ADD_MEMBERSHIP,opt,optlen) < 0) {
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if (setsockopt(sockfd, IPPROTO_IP, IP_ADD_MEMBERSHIP, opt, optlen)
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< 0) {
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close(sockfd);
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cw_log(LOG_ERR,"Can't add multicast membership %s: %s",addr,strerror(errno));
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cw_log(LOG_ERR, "Can't add multicast membership %s: %s",
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addr, strerror(errno));
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continue;
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}
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}
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if (res->ai_addr->sa_family == AF_INET6){
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if (res->ai_addr->sa_family == AF_INET6) {
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struct ipv6_mreq mreq;
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memset(&mreq,0,sizeof(mreq));
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struct sockaddr_in6 * sain6 = (struct sockaddr_in6*)res->ai_addr;
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// mreq.ipv6mr_multiaddr.s_addr=sain->sin_addr.s_addr;
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memcpy(&mreq.ipv6mr_multiaddr.s6_addr,&sain6->sin6_addr.s6_addr,sizeof(sain6->sin6_addr.s6_addr));
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// int si = sizeof(sain6->sin6_addr.s6_addr);
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memset(&mreq, 0, sizeof(mreq));
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struct sockaddr_in6 *sain6 = (struct sockaddr_in6 *) res->ai_addr;
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// mreq.ipv6mr_multiaddr.s_addr=sain->sin_addr.s_addr;
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memcpy(&mreq.ipv6mr_multiaddr.s6_addr, &sain6->sin6_addr.s6_addr,
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sizeof(sain6->sin6_addr.s6_addr));
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// int si = sizeof(sain6->sin6_addr.s6_addr);
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// int i = sain6->sin6_addr.s6_addr;
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mreq.ipv6mr_interface=0; //htonl(INADDR_ANY);
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// int i = sain6->sin6_addr.s6_addr;
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mreq.ipv6mr_interface = 0; //htonl(INADDR_ANY);
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opt = &mreq;
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optlen=sizeof(mreq);
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if (setsockopt(sockfd,IPPROTO_IPV6,IPV6_JOIN_GROUP,opt,optlen) < 0) {
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optlen = sizeof(mreq);
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if (setsockopt(sockfd, IPPROTO_IPV6, IPV6_JOIN_GROUP, opt, optlen)
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< 0) {
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close(sockfd);
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cw_log(LOG_ERR,"Can't join multicast group %s: %s",addr,strerror(errno));
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cw_log(LOG_ERR, "Can't join multicast group %s: %s", addr,
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strerror(errno));
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continue;
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}
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}
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int rfd = find_reply_socket(sa,0);
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int rfd = find_reply_socket(sa, 0);
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socklist[socklist_len].sockfd=sockfd;
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socklist[socklist_len].reply_sockfd=rfd;
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socklist[socklist_len].type=SOCKLIST_BCASTMCAST_SOCKET;
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socklist[socklist_len].family=sa->sa_family;
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socklist[socklist_len].ac_proto=ac_proto;
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socklist[socklist_len].sockfd = sockfd;
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socklist[socklist_len].reply_sockfd = rfd;
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socklist[socklist_len].type = SOCKLIST_BCASTMCAST_SOCKET;
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socklist[socklist_len].family = sa->sa_family;
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socklist[socklist_len].ac_proto = ac_proto;
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socklist_len++;
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cw_log(LOG_INFO,"Bound to multicast group: %s (fd=%i,r:%i)",addr,sockfd,rfd);
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cw_log(LOG_INFO, "Bound to multicast group: %s (fd=%i,r:%i)", addr,
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sockfd, rfd);
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}
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freeaddrinfo(res0);
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@ -286,138 +324,151 @@ int socklist_add_multicast(const char * addr, const char * port,int ac_proto)
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}
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int socklist_add_unicast(const char *addr, const char * port, int ac_proto)
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int socklist_add_unicast(const char *addr, const char *port, int ac_proto)
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{
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struct addrinfo hints;
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struct addrinfo * res,*res0;
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memset(&hints,0,sizeof(hints));
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struct addrinfo *res, *res0;
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memset(&hints, 0, sizeof(hints));
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hints.ai_socktype = SOCK_DGRAM;
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hints.ai_family = PF_UNSPEC;
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hints.ai_flags=AI_PASSIVE;
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hints.ai_flags = AI_PASSIVE;
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int rc = getaddrinfo(addr,port,&hints,&res0);
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if (rc!=0) {
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cw_log(LOG_ERR,"Can't bind unicast address '%s': %s",addr,gai_strerror(rc));
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int rc = getaddrinfo(addr, port, &hints, &res0);
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if (rc != 0) {
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cw_log(LOG_ERR, "Can't bind unicast address '%s': %s", addr,
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gai_strerror(rc));
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return 0;
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}
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for(res=res0; res; res=res->ai_next){
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for (res = res0; res; res = res->ai_next) {
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char ifname[64];
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struct sockaddr netmask;
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struct sockaddr broadcast;
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ifname[0]=0;
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rc = sock_getifinfo(res->ai_addr,ifname,&broadcast,&netmask);
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ifname[0] = 0;
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rc = sock_getifinfo(res->ai_addr, ifname, &broadcast, &netmask);
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if (!rc) {
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cw_log(LOG_ERR,"No interface found for %s, can't bind.",addr);
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cw_log(LOG_ERR, "No interface found for %s, can't bind.", addr);
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continue;
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}
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struct sockaddr *sa = res->ai_addr;
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int sockfd = socket(res->ai_addr->sa_family, SOCK_DGRAM, 0);
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/* create socket */
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if (sockfd==-1){
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cw_log(LOG_ERR,"Can't create unicast socket: %",strerror(errno));
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if (sockfd == -1) {
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cw_log(LOG_ERR, "Can't create unicast socket: %s",
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strerror(errno));
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continue;
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}
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/* bind address */
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if ( bind(sockfd,sa,sock_addrlen(sa)) < 0) {
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if (bind(sockfd, sa, sock_addrlen(sa)) < 0) {
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close(sockfd);
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cw_log(LOG_ERR,"Can't bind unicast socket %s: %s",addr,strerror(errno));
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cw_log(LOG_ERR, "Can't bind unicast socket %s: %s", addr,
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strerror(errno));
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continue;
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}
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socklist[socklist_len].sockfd=sockfd;
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socklist[socklist_len].reply_sockfd=sockfd;
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socklist[socklist_len].family=sa->sa_family;
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socklist[socklist_len].type=SOCKLIST_UNICAST_SOCKET;
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socklist[socklist_len].ac_proto=ac_proto;
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socklist[socklist_len].sockfd = sockfd;
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socklist[socklist_len].reply_sockfd = sockfd;
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socklist[socklist_len].family = sa->sa_family;
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socklist[socklist_len].type = SOCKLIST_UNICAST_SOCKET;
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socklist[socklist_len].ac_proto = ac_proto;
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if (res->ai_addr->sa_family == AF_INET ) {
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memcpy(&socklist[socklist_len].netmask,&netmask,sock_addrlen(&netmask));
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memcpy(&socklist[socklist_len].addr,res->ai_addr,sock_addrlen(res->ai_addr));
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cw_log(LOG_INFO,"Bound to: %s (%i) on interface %s, netmask %s",addr,sockfd,ifname,sock_addr2str(&netmask));
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}
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else{
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cw_log(LOG_INFO,"Bound to: %s (%i) on interface %s",addr,sockfd,ifname);
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if (res->ai_addr->sa_family == AF_INET) {
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memcpy(&socklist[socklist_len].netmask, &netmask,
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sock_addrlen(&netmask));
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memcpy(&socklist[socklist_len].addr, res->ai_addr,
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sock_addrlen(res->ai_addr));
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cw_log(LOG_INFO,
|
||||
"Bound to: %s:%s (%i) on interface %s, netmask %s", addr,
|
||||
port, sockfd, ifname, sock_addr2str(&netmask));
|
||||
} else {
|
||||
cw_log(LOG_INFO, "Bound to: %s:%s (%i) on interface %s", addr,
|
||||
port, sockfd, ifname);
|
||||
}
|
||||
socklist_len++;
|
||||
|
||||
}
|
||||
|
||||
freeaddrinfo(res0);
|
||||
freeaddrinfo(res0);
|
||||
return 1;
|
||||
}
|
||||
|
||||
int socklist_add_broadcast(const char *addr, const char * port,int ac_proto)
|
||||
int socklist_add_broadcast(const char *addr, const char *port, int ac_proto)
|
||||
{
|
||||
struct addrinfo hints;
|
||||
struct addrinfo * res,*res0;
|
||||
memset(&hints,0,sizeof(hints));
|
||||
struct addrinfo *res, *res0;
|
||||
memset(&hints, 0, sizeof(hints));
|
||||
|
||||
hints.ai_socktype = SOCK_DGRAM;
|
||||
hints.ai_family = PF_UNSPEC;
|
||||
hints.ai_flags=AI_PASSIVE;
|
||||
hints.ai_flags = AI_PASSIVE;
|
||||
|
||||
|
||||
int rc = getaddrinfo(addr,port,&hints,&res0);
|
||||
if (rc!=0) {
|
||||
cw_log(LOG_ERR,"Can't bind broadcast address '%s': %s",addr,gai_strerror(rc));
|
||||
int rc = getaddrinfo(addr, port, &hints, &res0);
|
||||
if (rc != 0) {
|
||||
cw_log(LOG_ERR, "Can't bind broadcast address '%s': %s", addr,
|
||||
gai_strerror(rc));
|
||||
return 0;
|
||||
}
|
||||
|
||||
int sockfd;
|
||||
for(res=res0; res; res=res->ai_next){
|
||||
for (res = res0; res; res = res->ai_next) {
|
||||
|
||||
struct sockaddr *sa = res->ai_addr;
|
||||
sockfd = socket(res->ai_addr->sa_family, SOCK_DGRAM, 0);
|
||||
|
||||
/* create socket */
|
||||
if (sockfd==-1){
|
||||
cw_log(LOG_ERR,"Can't create broadcast socket: %",strerror(errno));
|
||||
if (sockfd == -1) {
|
||||
cw_log(LOG_ERR, "Can't create broadcast socket: %",
|
||||
strerror(errno));
|
||||
continue;
|
||||
}
|
||||
|
||||
#ifdef IP_BINDANY
|
||||
struct sockaddr_in * sain = (struct sockaddr_in*)sa;
|
||||
if (sain->sin_addr.s_addr==INADDR_BROADCAST ){
|
||||
int opt=1;
|
||||
if (setsockopt(sockfd, IPPROTO_IP, IP_BINDANY, &opt, sizeof(opt))){
|
||||
cw_log(LOG_ERR,"Can't set sockopt IP_BIND_ANY: %s",strerror(errno));
|
||||
struct sockaddr_in *sain = (struct sockaddr_in *) sa;
|
||||
if (sain->sin_addr.s_addr == INADDR_BROADCAST) {
|
||||
int opt = 1;
|
||||
if (setsockopt(sockfd, IPPROTO_IP, IP_BINDANY, &opt, sizeof(opt))) {
|
||||
cw_log(LOG_ERR, "Can't set sockopt IP_BIND_ANY: %s",
|
||||
strerror(errno));
|
||||
continue;
|
||||
};
|
||||
}
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/* bind address */
|
||||
if ( bind(sockfd,sa,sock_addrlen(sa)) < 0) {
|
||||
if (bind(sockfd, sa, sock_addrlen(sa)) < 0) {
|
||||
close(sockfd);
|
||||
sockfd=-1;
|
||||
cw_log(LOG_ERR,"Can't bind broadcast %s: %s",addr,strerror(errno));
|
||||
sockfd = -1;
|
||||
cw_log(LOG_ERR, "Can't bind broadcast %s: %s", addr,
|
||||
strerror(errno));
|
||||
continue;
|
||||
}
|
||||
|
||||
|
||||
int rfd = find_reply_socket(sa,1);
|
||||
int rfd = find_reply_socket(sa, 1);
|
||||
|
||||
socklist[socklist_len].sockfd=sockfd;
|
||||
socklist[socklist_len].reply_sockfd=rfd;
|
||||
socklist[socklist_len].type=SOCKLIST_BCASTMCAST_SOCKET;
|
||||
socklist[socklist_len].family=sa->sa_family;
|
||||
socklist[socklist_len].ac_proto=ac_proto;
|
||||
// printf ("AC INIT PROTO : %d, i %i\n",ac_proto,socklist_len);
|
||||
// printf ("sock proto %d\n",socklist[socklist_len].ac_proto);
|
||||
socklist[socklist_len].sockfd = sockfd;
|
||||
socklist[socklist_len].reply_sockfd = rfd;
|
||||
socklist[socklist_len].type = SOCKLIST_BCASTMCAST_SOCKET;
|
||||
socklist[socklist_len].family = sa->sa_family;
|
||||
socklist[socklist_len].ac_proto = ac_proto;
|
||||
|
||||
memcpy(&socklist[socklist_len].addr, res->ai_addr,
|
||||
sock_addrlen(res->ai_addr));
|
||||
|
||||
// printf ("AC INIT PROTO : %d, i %i\n",ac_proto,socklist_len);
|
||||
// printf ("sock proto %d\n",socklist[socklist_len].ac_proto);
|
||||
socklist_len++;
|
||||
|
||||
cw_log(LOG_INFO,"Bound to broadcast: %s:%s (%i,R:%i,I:%d)",addr,port,sockfd,rfd,socklist_len-1);
|
||||
cw_log(LOG_INFO, "Bound to broadcast: %s:%s (%i,R:%i,I:%d)", addr, port,
|
||||
sockfd, rfd, socklist_len - 1);
|
||||
}
|
||||
|
||||
freeaddrinfo(res0);
|
||||
return 1;
|
||||
freeaddrinfo(res0);
|
||||
return 1;
|
||||
}
|
||||
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user