[insert project logo here (125x200px max)] Navigator Home Downloads Documentation Research News Forums Project Summary CVS repository Mailinglists Help Announcement Developer Please report any errors or ommissions you find to our `Help' mailinglist, or post a message in the Forums. Copyright and Licensing Information Snap is (c) Jonathan T. Moore, 1999-2002 and licensed under the GNU General Public License (GPL). All other parts of Splash are (c) Willem de Bruijn, 2002-2003 and licensed under the BSD Open Source License. All sourcecode is made publicly available. Acknowledgement Splash and the Splash website are hosted by SourceForge.net

Splash - Documentation SNMP Plus a Lightweight API for SNAP Handling             snap-1.1-wjdb/lib/interface.c Go to the documentation of this file. /* Code to manipulate interface information, shared between ifconfig and netstat. */ #include "config.h" #include <sys/types.h> #include <sys/socket.h> #include <sys/ioctl.h> #include <netinet/in.h> #include <net/if.h> #include <stdio.h> #include <errno.h> #include <stdlib.h> #include <string.h> #include <unistd.h> #include <ctype.h> #if HAVE_AFIPX #if (__GLIBC__ > 2) || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1) #include <netipx/ipx.h> #else #include "ipx.h" #endif #endif #if HAVE_AFECONET #include <linux/if_ec.h> #endif #include "net-support.h" #include "pathnames.h" #include "version.h" #include "interface.h" #include "sockets.h" int procnetdev_vsn = 1; static void if_getstats(char *ifname, struct interface *ife) { FILE *f = fopen(_PATH_PROCNET_DEV, "r"); char buf[256]; char *bp; if (f == NULL) return; fgets(buf, 255, f); /* throw away first line of header */ fgets(buf, 255, f); if (strstr(buf, "compressed")) procnetdev_vsn = 3; else if (strstr(buf, "bytes")) procnetdev_vsn = 2; while (fgets(buf, 255, f)) { bp=buf; while(*bp && isspace(*bp)) bp++; if (strncmp(bp, ifname, strlen(ifname)) == 0 && bp[strlen(ifname)] == ':') { bp = strchr(bp, ':'); bp++; switch (procnetdev_vsn) { case 3: sscanf(bp, "%ld %ld %ld %ld %ld %ld %ld %ld %ld %ld %ld %ld %ld %ld %ld %ld", &ife->stats.rx_bytes, &ife->stats.rx_packets, &ife->stats.rx_errors, &ife->stats.rx_dropped, &ife->stats.rx_fifo_errors, &ife->stats.rx_frame_errors, &ife->stats.rx_compressed, &ife->stats.rx_multicast, &ife->stats.tx_bytes, &ife->stats.tx_packets, &ife->stats.tx_errors, &ife->stats.tx_dropped, &ife->stats.tx_fifo_errors, &ife->stats.collisions, &ife->stats.tx_carrier_errors, &ife->stats.tx_compressed ); break; case 2: sscanf(bp, "%ld %ld %ld %ld %ld %ld %ld %ld %ld %ld %ld %ld %ld", &ife->stats.rx_bytes, &ife->stats.rx_packets, &ife->stats.rx_errors, &ife->stats.rx_dropped, &ife->stats.rx_fifo_errors, &ife->stats.rx_frame_errors, &ife->stats.tx_bytes, &ife->stats.tx_packets, &ife->stats.tx_errors, &ife->stats.tx_dropped, &ife->stats.tx_fifo_errors, &ife->stats.collisions, &ife->stats.tx_carrier_errors ); ife->stats.rx_multicast = 0; break; case 1: sscanf(bp, "%ld %ld %ld %ld %ld %ld %ld %ld %ld %ld %ld", &ife->stats.rx_packets, &ife->stats.rx_errors, &ife->stats.rx_dropped, &ife->stats.rx_fifo_errors, &ife->stats.rx_frame_errors, &ife->stats.tx_packets, &ife->stats.tx_errors, &ife->stats.tx_dropped, &ife->stats.tx_fifo_errors, &ife->stats.collisions, &ife->stats.tx_carrier_errors ); ife->stats.rx_bytes = 0; ife->stats.tx_bytes = 0; ife->stats.rx_multicast = 0; break; } break; } } fclose(f); } /* Support for fetching an IPX address */ #if HAVE_AFIPX static int ipx_getaddr(int sock, int ft, struct ifreq *ifr) { ((struct sockaddr_ipx *)&ifr->ifr_addr)->sipx_type=ft; return ioctl(sock, SIOCGIFADDR, ifr); } #endif /* Fetch the interface configuration from the kernel. */ int if_fetch(char *ifname, struct interface *ife) { struct ifreq ifr; memset((char *) ife, 0, sizeof(struct interface)); strcpy(ife->name, ifname); strcpy(ifr.ifr_name, ifname); if (ioctl(skfd, SIOCGIFFLAGS, &ifr) < 0) return(-1); ife->flags = ifr.ifr_flags; strcpy(ifr.ifr_name, ifname); if (ioctl(skfd, SIOCGIFHWADDR, &ifr) < 0) memset(ife->hwaddr, 0, 32); else memcpy(ife->hwaddr,ifr.ifr_hwaddr.sa_data,8); ife->type=ifr.ifr_hwaddr.sa_family; strcpy(ifr.ifr_name, ifname); if (ioctl(skfd, SIOCGIFMETRIC, &ifr) < 0) ife->metric = 0; else ife->metric = ifr.ifr_metric; strcpy(ifr.ifr_name, ifname); if (ioctl(skfd, SIOCGIFMTU, &ifr) < 0) ife->mtu = 0; else ife->mtu = ifr.ifr_mtu; strcpy(ifr.ifr_name, ifname); if (ioctl(skfd, SIOCGIFMAP, &ifr) < 0) memset(&ife->map, 0, sizeof(struct ifmap)); else memcpy(&ife->map,&ifr.ifr_map,sizeof(struct ifmap)); strcpy(ifr.ifr_name, ifname); if (ioctl(skfd, SIOCGIFMAP, &ifr) < 0) memset(&ife->map, 0, sizeof(struct ifmap)); else ife->map = ifr.ifr_map; #ifdef HAVE_TXQUEUELEN strcpy(ifr.ifr_name, ifname); if (ioctl(skfd, SIOCGIFTXQLEN, &ifr) < 0) ife->tx_queue_len = -1; /* unknown value */ else ife->tx_queue_len = ifr.ifr_qlen; #else ife->tx_queue_len = -1; /* unknown value */ #endif #if HAVE_AFINET strcpy(ifr.ifr_name, ifname); if (inet_sock < 0 || ioctl(inet_sock, SIOCGIFDSTADDR, &ifr) < 0) memset(&ife->dstaddr, 0, sizeof(struct sockaddr)); else ife->dstaddr = ifr.ifr_dstaddr; strcpy(ifr.ifr_name, ifname); if (inet_sock < 0 || ioctl(inet_sock, SIOCGIFBRDADDR, &ifr) < 0) memset(&ife->broadaddr, 0, sizeof(struct sockaddr)); else ife->broadaddr = ifr.ifr_broadaddr; strcpy(ifr.ifr_name, ifname); if (inet_sock < 0 || ioctl(inet_sock, SIOCGIFNETMASK, &ifr) < 0) memset(&ife->netmask, 0, sizeof(struct sockaddr)); else ife->netmask = ifr.ifr_netmask; strcpy(ifr.ifr_name, ifname); if (inet_sock < 0 || ioctl(inet_sock, SIOCGIFADDR, &ifr) < 0) memset(&ife->addr, 0, sizeof(struct sockaddr)); else ife->addr = ifr.ifr_addr; #endif #if HAVE_AFATALK /* DDP address maybe ? */ strcpy(ifr.ifr_name, ifname); if (ddp_sock >= 0 && ioctl(ddp_sock, SIOCGIFADDR, &ifr) == 0) { ife->ddpaddr=ifr.ifr_addr; ife->has_ddp=1; } #endif #if HAVE_AFIPX /* Look for IPX addresses with all framing types */ strcpy(ifr.ifr_name, ifname); if (ipx_sock >= 0) { if (!ipx_getaddr(ipx_sock, IPX_FRAME_ETHERII, &ifr)) { ife->has_ipx_bb=1; ife->ipxaddr_bb=ifr.ifr_addr; } strcpy(ifr.ifr_name, ifname); if (!ipx_getaddr(ipx_sock, IPX_FRAME_SNAP, &ifr)) { ife->has_ipx_sn=1; ife->ipxaddr_sn=ifr.ifr_addr; } strcpy(ifr.ifr_name, ifname); if(!ipx_getaddr(ipx_sock, IPX_FRAME_8023, &ifr)) { ife->has_ipx_e3=1; ife->ipxaddr_e3=ifr.ifr_addr; } strcpy(ifr.ifr_name, ifname); if(!ipx_getaddr(ipx_sock, IPX_FRAME_8022, &ifr)) { ife->has_ipx_e2=1; ife->ipxaddr_e2=ifr.ifr_addr; } } #endif #if HAVE_AFECONET /* Econet address maybe? */ strcpy(ifr.ifr_name, ifname); if (ec_sock >= 0 && ioctl(ec_sock, SIOCGIFADDR, &ifr) == 0) { ife->ecaddr = ifr.ifr_addr; ife->has_econet = 1; } #endif if_getstats(ifname, ife); return 0; }