diff -ur -P net-snmp.20051117/agent/mibgroup/if-mib/data_access/interface_freebsd.c net-snmp/agent/mibgroup/if-mib/data_access/interface_freebsd.c --- agent/mibgroup/if-mib/data_access/interface_freebsd.c.xx Thu Jan 1 03:00:00 1970 +++ agent/mibgroup/if-mib/data_access/interface_freebsd.c Thu Nov 17 20:46:02 2005 @@ -0,0 +1,459 @@ +/* + * Interface MIB architecture support + * + * $Id: interface_linux.c,v 1.27 2005/10/29 03:21:16 rstory Exp $ + */ +#include +#include +#include "mibII/mibII_common.h" +#include "if-mib/ifTable/ifTable_constants.h" + +#include + +#if HAVE_SYS_IOCTL_H +#include +#else +#error "linux should have sys/ioctl header" +#endif + +#include +#include +#include "if-mib/data_access/interface.h" + +#include +#include +#include +#include +#include +#include + +extern struct timeval starttime; + +int +netsnmp_freebsd_interface_get_if_speed(char *name, u_int *speed, u_int *speed_high); + +void +netsnmp_arch_interface_init(void) +{ + /* + * nothing to do + */ +} + +/* + * find the ifIndex for an interface name + * + * @retval 0 : no index found + * @retval >0: ifIndex for interface + */ +oid +netsnmp_arch_interface_index_find(const char *name) +{ + return if_nametoindex(name); +} + +/* + * + * @retval 0 success + * @retval -1 no container specified + * @retval -2 could not get interface info + * @retval -3 could not create entry (probably malloc) + */ +int +netsnmp_arch_interface_container_load(netsnmp_container* container, + u_int load_flags) +{ + netsnmp_interface_entry *entry = NULL; + u_char *if_list = NULL, *cp; + size_t if_list_size = 0; + struct if_msghdr *ifp; + int sysctl_oid[] = { CTL_NET, PF_ROUTE, 0, 0, NET_RT_IFLIST, 0 }; + struct ifa_msghdr *ifa; + struct sockaddr *a; + struct sockaddr_dl *adl; + int amask; + char *if_name; + int flags; + + DEBUGMSGTL(("access:interface:container:arch", + "load (flags %p)\n", load_flags)); + + if (NULL == container) { + snmp_log(LOG_ERR, "no container specified/found for interface\n"); + return -1; + } + + if (sysctl(sysctl_oid, sizeof(sysctl_oid) / sizeof(int), 0, &if_list_size, 0, 0) == -1) { + snmp_log(LOG_ERR, "could not get interface info (size)\n"); + return -2; + } + + if_list = malloc(if_list_size); + if (if_list == NULL) { + snmp_log(LOG_ERR, "could not allocate memory for interface info (%u bytes)\n", if_list_size); + return -3; + } else { + DEBUGMSGTL(("access:interface:container:arch", + "allocated %u bytes for if_list\n", if_list_size)); + } + + if (sysctl(sysctl_oid, sizeof(sysctl_oid) / sizeof(int), if_list, &if_list_size, 0, 0) == -1) { + snmp_log(LOG_ERR, "could not get interface info\n"); + free(if_list); + return -2; + } + + /* 1st pass: create interface entries */ + for (cp = if_list; cp < if_list + if_list_size; cp += ifp->ifm_msglen) { + + ifp = (struct if_msghdr *) cp; + if_name = NULL; + flags = 0; + adl = NULL; + + if (ifp->ifm_type != RTM_IFINFO) + continue; + + if (ifp->ifm_addrs & RTA_IFP) { + a = (struct sockaddr *) (ifp + 1); + /* if_msghdr is followed by one or more sockaddrs, of which we need only RTA_IFP */ + /* most of the time RTA_IFP is the first address we get, hence the shortcut */ + if ((ifp->ifm_addrs & (~RTA_IFP - 1)) != 0) { + /* skip all addresses up to RTA_IFP. */ + for (amask = (RTA_IFP >> 1); amask != 0; amask >>= 1) { + if (ifp->ifm_addrs & amask) { a = (struct sockaddr *) ( ((char *) a) + a->sa_len ); } + } + } + adl = (struct sockaddr_dl *) a; + if_name = (char *) adl->sdl_data; + if_name[adl->sdl_nlen] = '\0'; + } + if (!(ifp->ifm_addrs & RTA_IFP) || if_name == NULL) { + snmp_log(LOG_ERR, "ifm_index %u: no interface name in message, skipping\n", ifp->ifm_index); + continue; + } + + entry = netsnmp_access_interface_entry_create(if_name, ifp->ifm_index); + if(NULL == entry) { + netsnmp_access_interface_container_free(container, + NETSNMP_ACCESS_INTERFACE_FREE_NOFLAGS); + free(if_list); + return -3; + } + + /* get physical address */ + if (adl != NULL && adl->sdl_alen > 0) { + entry->paddr_len = adl->sdl_alen; + entry->paddr = malloc(entry->paddr_len); + memcpy(entry->paddr, adl->sdl_data + adl->sdl_nlen, adl->sdl_alen); + DEBUGMSGTL(("access:interface:container:arch", + "%s: paddr_len=%d, entry->paddr=%x:%x:%x:%x:%x:%x\n", + if_name, entry->paddr_len, + entry->paddr[0], entry->paddr[1], entry->paddr[2], + entry->paddr[3], entry->paddr[4], entry->paddr[5])); + } else { + entry->paddr = malloc(6); + entry->paddr_len = 6; + memset(entry->paddr, 0, 6); + } + + entry->mtu = ifp->ifm_data.ifi_mtu; + entry->type = ifp->ifm_data.ifi_type; + + + entry->ns_flags |= NETSNMP_INTERFACE_FLAGS_HAS_IF_FLAGS; + entry->os_flags = ifp->ifm_flags; + + if (ifp->ifm_flags & IFF_UP) { + entry->admin_status = IFADMINSTATUS_UP; +#if defined( LINK_STATE_UP ) && defined( LINK_STATE_DOWN ) + if (ifp->ifm_data.ifi_link_state == LINK_STATE_UP) { + entry->oper_status = IFOPERSTATUS_UP; + } else if (ifp->ifm_data.ifi_link_state == LINK_STATE_DOWN) { + entry->oper_status = IFOPERSTATUS_DOWN; + } else { + entry->oper_status = IFOPERSTATUS_UNKNOWN; + } +#else + entry->oper_status = IFOPERSTATUS_UP; +#endif + } else { + entry->admin_status = IFADMINSTATUS_DOWN; + /* IF-MIB specifically says that ifOperStatus should be down in this case */ + entry->oper_status = IFOPERSTATUS_DOWN; + } + + entry->ns_flags |= NETSNMP_INTERFACE_FLAGS_HAS_V4_REASMMAX; + entry->reasm_max = IP_MAXPACKET; + + /* get counters */ + entry->stats.ibytes.low = ifp->ifm_data.ifi_ibytes; entry->stats.ibytes.high = 0; + entry->stats.iucast.low = ifp->ifm_data.ifi_ipackets; entry->stats.iucast.high = 0; + entry->stats.imcast.low = ifp->ifm_data.ifi_imcasts; entry->stats.imcast.high = 0; + entry->stats.ierrors = ifp->ifm_data.ifi_ierrors; + entry->stats.idiscards = ifp->ifm_data.ifi_iqdrops; + entry->stats.iunknown_protos = ifp->ifm_data.ifi_noproto; + + entry->stats.obytes.low = ifp->ifm_data.ifi_obytes; entry->stats.obytes.high = 0; + entry->stats.oucast.low = ifp->ifm_data.ifi_opackets; entry->stats.oucast.high = 0; + entry->stats.omcast.low = ifp->ifm_data.ifi_omcasts; entry->stats.omcast.high = 0; + entry->stats.oerrors = ifp->ifm_data.ifi_oerrors; + entry->ns_flags |= NETSNMP_INTERFACE_FLAGS_HAS_BYTES | + NETSNMP_INTERFACE_FLAGS_HAS_DROPS | + NETSNMP_INTERFACE_FLAGS_HAS_MCAST_PKTS; + + if (timercmp(&ifp->ifm_data.ifi_lastchange, &starttime, >)) { + entry->lastchange = (ifp->ifm_data.ifi_lastchange.tv_sec - starttime.tv_sec) * 100; + entry->ns_flags |= NETSNMP_INTERFACE_FLAGS_HAS_LASTCHANGE; + } else { + entry->lastchange = 0; + } + + if (ifp->ifm_flags & IFF_PPROMISC) entry->promiscuous = 1; + + /* try to guess the speed from media type */ + netsnmp_freebsd_interface_get_if_speed(entry->name, &entry->speed, &entry->speed_high); + if (entry->speed_high != 0) { + entry->ns_flags |= NETSNMP_INTERFACE_FLAGS_HAS_HIGH_SPEED; + } else { + /* or resort to ifi_baudrate */ + entry->speed = ifp->ifm_data.ifi_baudrate; + } + + netsnmp_access_interface_entry_overrides(entry); + + CONTAINER_INSERT(container, entry); + DEBUGMSGTL(("access:interface:container:arch", + "created entry %u for %s\n", entry->index, entry->name)); + } /* for (each interfac entry) */ + + /* pass 2: walk addresses */ + for (cp = if_list; cp < if_list + if_list_size; cp += ifa->ifam_msglen) { + + ifa = (struct ifa_msghdr *) cp; + + if (ifa->ifam_type != RTM_NEWADDR) + continue; + + DEBUGMSGTL(("access:interface:container:arch", + "received 0x%x in RTM_NEWADDR for ifindex %u\n", + ifa->ifam_addrs, ifa->ifam_index)); + + entry = netsnmp_access_interface_entry_get_by_index(container, ifa->ifam_index); + if (entry == NULL) { + snmp_log(LOG_ERR, "address for a nonexistent interface? index=%d", ifa->ifam_index); + continue; + } + + /* walk the list of addresses received. + we do not use actual addresses, the sole purpose of this is to set flags */ + a = (struct sockaddr *) (ifa + 1); + for (amask = ifa->ifam_addrs; amask != 0; amask >>= 1) { + if ((amask & 1) != 0) { + DEBUGMSGTL(("access:interface:container:arch", + "%s: a=%p, sa_len=%d, sa_family=0x%x\n", + entry->name, a, a->sa_len, a->sa_family)); + + if (a->sa_family == AF_INET) + entry->ns_flags |= NETSNMP_INTERFACE_FLAGS_HAS_IPV4; + else if (a->sa_family == AF_INET6) + entry->ns_flags |= NETSNMP_INTERFACE_FLAGS_HAS_IPV6; + + a = (struct sockaddr *) ( ((char *) a) + a->sa_len ); + } + } + DEBUGMSGTL(("access:interface:container:arch", + "%s: flags=0x%x\n", entry->name, entry->ns_flags)); + } + + if (if_list != NULL) + free(if_list); + + return 0; +} + +/* + * subroutine to translate known media typed to speed. + * see /usr/include/net/if_media.h for definitions + */ + +void +_freebsd_interface_ifmedia_to_speed(int media, u_int *speed, u_int *speed_high) +{ + *speed = 0; *speed_high = 0; + + switch (IFM_TYPE(media)) { + case IFM_ETHER: + switch (IFM_SUBTYPE(media)) { + case IFM_10_T: + case IFM_10_2: + case IFM_10_5: + case IFM_10_STP: + case IFM_10_FL: + *speed = 10000000; *speed_high = 10; break; + case IFM_100_TX: + case IFM_100_FX: + case IFM_100_T4: + case IFM_100_VG: + case IFM_100_T2: + *speed = 100000000; *speed_high = 100; break; + case IFM_1000_LX: + case IFM_1000_CX: +#ifdef IFM_1000_T + case IFM_1000_T: +#endif + *speed = 1000000000; *speed_high = 1000; break; +#ifdef IFM_10GBASE_SR + case IFM_10GBASE_SR: + case IFM_10GBASE_LR: + *speed = (u_int) -1; /* 4294967295; */ *speed_high = 10000; break; +#endif + } + break; + case IFM_IEEE80211: + switch (IFM_SUBTYPE(media)) { + case IFM_IEEE80211_FH1: + case IFM_IEEE80211_DS1: + *speed = 1000000; *speed_high = 1; break; + case IFM_IEEE80211_FH2: + case IFM_IEEE80211_DS2: + *speed = 2000000; *speed_high = 2; break; + case IFM_IEEE80211_DS5: + *speed = 5500000; *speed_high = 5; break; + case IFM_IEEE80211_DS11: + *speed = 11000000; *speed_high = 11; break; + case IFM_IEEE80211_DS22: + *speed = 22000000; *speed_high = 22; break; +#ifdef IFM_IEEE80211_OFDM6 + case IFM_IEEE80211_OFDM6: + *speed = 6000000; *speed_high = 6; break; + case IFM_IEEE80211_OFDM9: + *speed = 9000000; *speed_high = 9; break; + case IFM_IEEE80211_OFDM12: + *speed = 12000000; *speed_high = 12; break; + case IFM_IEEE80211_OFDM18: + *speed = 18000000; *speed_high = 18; break; + case IFM_IEEE80211_OFDM24: + *speed = 24000000; *speed_high = 24; break; + case IFM_IEEE80211_OFDM36: + *speed = 36000000; *speed_high = 36; break; + case IFM_IEEE80211_OFDM48: + *speed = 48000000; *speed_high = 48; break; + case IFM_IEEE80211_OFDM54: + *speed = 54000000; *speed_high = 54; break; + case IFM_IEEE80211_OFDM72: + *speed = 72000000; *speed_high = 72; break; +#endif + } + break; + case IFM_TOKEN: + switch (IFM_SUBTYPE(media)) { + case IFM_TOK_STP4: + case IFM_TOK_UTP4: + *speed = 4000000; *speed_high = 4; break; + case IFM_TOK_STP16: + case IFM_TOK_UTP16: + *speed = 16000000; *speed_high = 16; break; + case IFM_TOK_STP100: + case IFM_TOK_UTP100: + *speed = 100000000; *speed_high = 100; break; + } + break; +#ifdef IFM_ATM + case IFM_ATM: + switch (IFM_SUBTYPE(media)) { + case IFM_ATM_MM_155: + case IFM_ATM_SM_155: + *speed = 155000000; *speed_high = 155; break; + case IFM_ATM_MM_622: + case IFM_ATM_SM_622: + *speed = 622000000; *speed_high = 622; break; + } +#endif + } + return; +} + +/* + * @retval 0 speed could not be determined (error, unknown media) + * @retval >0 speed, equal to *speed. + * sets *speed=2^31 and returns *speed_high=speed/10^6 as required by ifSpeed/ifHighSpeed. + */ + +int +netsnmp_freebsd_interface_get_if_speed(char *name, u_int *speed, u_int *speed_high) +{ + int s; + struct ifmediareq ifmr; + int *media_list, i; + u_int t_speed, t_speed_high; + u_int m_speed, m_speed_high; + + *speed = 0; *speed_high = 0; + + if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0) { + return 0; + } + + (void) memset(&ifmr, 0, sizeof(ifmr)); + (void) strncpy(ifmr.ifm_name, name, sizeof(ifmr.ifm_name)); + + if (ioctl(s, SIOCGIFMEDIA, (caddr_t)&ifmr) < 0 || + ifmr.ifm_count == 0) { + + close(s); + return 0; + } + + /* + * try to get speed from current media. + * if unsuccessful (e.g., interface is down), get a list of capabilities, + * try each and return maximum speed the interface is capable of. + */ + + _freebsd_interface_ifmedia_to_speed(ifmr.ifm_current, speed, speed_high); + + if (*speed == 0 && + (media_list = (int *) malloc(ifmr.ifm_count * sizeof(int))) != NULL ) { + + ifmr.ifm_ulist = media_list; + + if (ioctl(s, SIOCGIFMEDIA, (caddr_t)&ifmr) == 0) { + m_speed = 0; m_speed_high = 0; + for (i = 0; i < ifmr.ifm_count; i++) { + + _freebsd_interface_ifmedia_to_speed(media_list[i], &t_speed, &t_speed_high); + + if (t_speed_high > m_speed_high || + (t_speed_high == m_speed_high && t_speed > t_speed)) { + m_speed_high = t_speed_high; m_speed = t_speed; + } + } + *speed = m_speed; *speed_high = m_speed_high; + } + free(media_list); + } + + close(s); + + DEBUGMSGTL(("access:interface:container:arch", + "%s: speed: %u, speed_high: %u\n", + name, *speed, *speed_high)); + + return *speed; +} + +int +netsnmp_arch_set_admin_status(netsnmp_interface_entry * entry, + int ifAdminStatus_val) +{ + DEBUGMSGTL(("access:interface:arch", "set_admin_status\n")); + + /* TODO: implement this call */ + + /* not implemented */ + snmp_log(LOG_ERR, "netsnmp_arch_set_admin_status is not (yet) implemented for FreeBSD.\n"); + + return -4; +} +