--- libelwix/src/net.c 2016/05/14 11:31:38 1.12.4.1 +++ libelwix/src/net.c 2016/05/18 12:38:16 1.12.4.6 @@ -3,7 +3,7 @@ * by Michael Pounov * * $Author: misho $ -* $Id: net.c,v 1.12.4.1 2016/05/14 11:31:38 misho Exp $ +* $Id: net.c,v 1.12.4.6 2016/05/18 12:38:16 misho Exp $ * ************************************************************************** The ELWIX and AITNET software is distributed under the following @@ -12,7 +12,7 @@ terms: All of the documentation and software included in the ELWIX and AITNET Releases is copyrighted by ELWIX - Sofia/Bulgaria -Copyright 2004 - 2015 +Copyright 2004 - 2016 by Michael Pounov . All rights reserved. Redistribution and use in source and binary forms, with or without @@ -481,55 +481,70 @@ e_getnet(const char *net) * e_ether_addr() - Get or set ethernet address from interface name * * @ifname = interface name - * @addr = if addr is !=NULL then set this for new address - * return: NULL error or !=NULL get ethernet address should be e_free() + * @addr = if addr is !=NULL then set new ethernet address + * return: NULL error or !=NULL get current ethernet address should be e_free() */ ether_addr_t * e_ether_addr(const char *ifname, ether_addr_t * __restrict addr) { ether_addr_t *a = NULL; struct ifaddrs *p, *ifa = NULL; -#ifdef __linux__ - int s; struct ifreq req; + int s; + sockaddr_t sa = E_SOCKADDR_INIT; memset(&req, 0, sizeof req); -#endif - if (!ifname) return NULL; - a = e_malloc(sizeof(ether_addr_t)); - if (!a) - return NULL; - else - memset(a, 0, sizeof(ether_addr_t)); - getifaddrs(&ifa); - for (p = ifa; p && p->ifa_name; p++) + for (p = ifa; p && p->ifa_name; p = p->ifa_next) { #ifndef __linux__ if (p->ifa_name && !strcmp(p->ifa_name, ifname) && p->ifa_addr && p->ifa_addr->sa_family == AF_LINK) { - memcpy(a, LLADDR((struct sockaddr_dl*) p->ifa_addr), sizeof(ether_addr_t)); + a = e_malloc(sizeof(ether_addr_t)); + if (a) + memcpy(a, LLADDR((struct sockaddr_dl*) p->ifa_addr), + sizeof(ether_addr_t)); + + /* should set mac address */ + if (addr && (s = socket(AF_LOCAL, SOCK_DGRAM, 0)) > 0) { + strlcpy(req.ifr_name, ifname, sizeof req.ifr_name); + sa.sa.sa_family = AF_LINK; + sa.sa.sa_len = sizeof(ether_addr_t); + memcpy(sa.sa.sa_data, addr, sizeof(ether_addr_t)); + req.ifr_ifru.ifru_addr = sa.sa; + ioctl(s, SIOCSIFLLADDR, &req); + close(s); + } break; } #else if (p->ifa_name && !strcmp(p->ifa_name, ifname)) { - s = socket(AF_INET, SOCK_DGRAM, IPPROTO_IP); - if (s == -1) { - e_free(a); - a = NULL; + s = socket(AF_INET, SOCK_DGRAM, 0); + if (s == -1) break; - } else - strlcpy(req.ifr_name, ifname, sizeof req.ifr_name); - if (ioctl(s, SIOCGIFHWADDR, &req) == -1) { - e_free(a); - a = NULL; - } else - memcpy(a, req.ifr_addr.sa_data, sizeof(ether_addr_t)); + strlcpy(req.ifr_name, ifname, sizeof req.ifr_name); + if (!ioctl(s, SIOCGIFHWADDR, &req)) { + a = e_malloc(sizeof(ether_addr_t)); + if (a) + memcpy(a, req.ifr_addr.sa_data, sizeof(ether_addr_t)); + + /* should set mac address */ + if (addr) { + memset(&req, 0, sizeof req); + strlcpy(req.ifr_name, ifname, sizeof req.ifr_name); + sa.sa.sa_family = ARPHRD_ETHER; + memcpy(sa.sa.sa_data, addr, sizeof(ether_addr_t)); + req.ifr_hwaddr = sa.sa; + ioctl(s, SIOCSIFHWADDR, &req); + } + } + close(s); break; } #endif + } freeifaddrs(ifa); return a; @@ -556,6 +571,7 @@ e_get1stiface(char *szIface, int iflen) return 0; } +#ifndef __linux__ /* * e_getifacebyname() - Get interface and make network structure * @@ -566,7 +582,6 @@ e_get1stiface(char *szIface, int iflen) sockaddr_t * e_getifacebyname(const char *psIface, sockaddr_t * __restrict addr) { -#ifndef __linux__ char szIface[64] = { [0 ... 63] = 0 }; struct ifaddrs *p, *ifa = NULL; @@ -576,7 +591,7 @@ e_getifacebyname(const char *psIface, sockaddr_t * __r memset(addr, 0, sizeof(sockaddr_t)); getifaddrs(&ifa); strlcpy(szIface, psIface ? psIface : ifa->ifa_name, sizeof szIface); - for (p = ifa; p && p->ifa_name; p++) + for (p = ifa; p && p->ifa_name; p = p->ifa_next) if (p->ifa_name && !strcmp(p->ifa_name, szIface) && p->ifa_addr && p->ifa_addr->sa_family == AF_LINK) { memcpy(&addr->sdl, p->ifa_addr, sizeof(struct sockaddr_dl)); @@ -585,10 +600,6 @@ e_getifacebyname(const char *psIface, sockaddr_t * __r freeifaddrs(ifa); return addr; -#else - elwix_SetErr(ENOSYS, "Unsuported routine on linux"); - return NULL; -#endif } /* @@ -601,7 +612,6 @@ e_getifacebyname(const char *psIface, sockaddr_t * __r sockaddr_t * e_getlinkbyname(const char *psHost, sockaddr_t * __restrict addr) { -#ifndef __linux__ ait_val_t v; sockaddr_t *a = addr; @@ -621,10 +631,6 @@ e_getlinkbyname(const char *psHost, sockaddr_t * __res AIT_FREE_VAL(&v); return a; -#else - elwix_SetErr(ENOSYS, "Unsuported routine on linux"); - return NULL; -#endif } /* @@ -641,7 +647,6 @@ sockaddr_t * e_getlinkbyether(const ether_addr_t * __restrict mac, u_short idx, u_char type, const char *iface, sockaddr_t * __restrict addr) { -#ifndef __linux__ sockaddr_t *a = addr; if (!addr) @@ -661,8 +666,5 @@ e_getlinkbyether(const ether_addr_t * __restrict mac, memcpy(LLADDR(&addr->sdl), mac, addr->sdl.sdl_alen); return a; -#else - elwix_SetErr(ENOSYS, "Unsuported routine on linux"); - return NULL; -#endif } +#endif