| /* |
| * tcpConnTable MIB architecture support for OpenBSD |
| */ |
| #include <net-snmp/net-snmp-config.h> |
| #include <net-snmp/net-snmp-includes.h> |
| |
| #include <net-snmp/agent/net-snmp-agent-includes.h> |
| #include <net-snmp/data_access/tcpConn.h> |
| #include <net-snmp/agent/auto_nlist.h> |
| |
| #include "tcp-mib/tcpConnectionTable/tcpConnectionTable_constants.h" |
| #include "tcp-mib/data_access/tcpConn_private.h" |
| |
| #include "mibII/mibII_common.h" |
| |
| #if HAVE_NETINET_TCP_H |
| #include <netinet/tcp.h> |
| #endif |
| #if HAVE_NETINET_TCP_TIMER_H |
| #include <netinet/tcp_timer.h> |
| #endif |
| #if HAVE_NETINET_TCPIP_H |
| #include <netinet/tcpip.h> |
| #endif |
| #if HAVE_NETINET_TCP_VAR_H |
| #include <netinet/tcp_var.h> |
| #endif |
| |
| static int _load(netsnmp_container *container, u_int flags); |
| |
| /* |
| * initialize arch specific storage |
| * |
| * @retval 0: success |
| * @retval <0: error |
| */ |
| int |
| netsnmp_arch_tcpconn_entry_init(netsnmp_tcpconn_entry *entry) |
| { |
| /* |
| * init |
| */ |
| return 0; |
| } |
| |
| /* |
| * cleanup arch specific storage |
| */ |
| void |
| netsnmp_arch_tcpconn_entry_cleanup(netsnmp_tcpconn_entry *entry) |
| { |
| /* |
| * cleanup |
| */ |
| } |
| |
| /* |
| * copy arch specific storage |
| */ |
| int |
| netsnmp_arch_tcpconn_entry_copy(netsnmp_tcpconn_entry *lhs, |
| netsnmp_tcpconn_entry *rhs) |
| { |
| return 0; |
| } |
| |
| /* |
| * delete an entry |
| */ |
| int |
| netsnmp_arch_tcpconn_entry_delete(netsnmp_tcpconn_entry *entry) |
| { |
| if (NULL == entry) |
| return -1; |
| /** xxx-rks:9 tcpConn delete not implemented */ |
| return -1; |
| } |
| |
| |
| /** |
| * |
| * @retval 0 no errors |
| * @retval !0 errors |
| */ |
| int |
| netsnmp_arch_tcpconn_container_load(netsnmp_container *container, |
| u_int load_flags ) |
| { |
| int rc = 0; |
| |
| DEBUGMSGTL(("access:tcpconn:container", |
| "tcpconn_container_arch_load (flags %x)\n", load_flags)); |
| |
| if (NULL == container) { |
| snmp_log(LOG_ERR, "no container specified/found for access_tcpconn\n"); |
| return -1; |
| } |
| |
| rc = _load(container, load_flags); |
| |
| return rc; |
| } |
| |
| |
| /** |
| * |
| * @retval 0 no errors |
| * @retval !0 errors |
| */ |
| static int |
| _load(netsnmp_container *container, u_int load_flags) |
| { |
| struct inpcbtable table; |
| struct inpcb *head, *next, *prev; |
| struct inpcb inpcb; |
| struct tcpcb tcpcb; |
| int StateMap[] = { 1, 2, 3, 4, 5, 8, 6, 10, 9, 7, 11 }; |
| netsnmp_tcpconn_entry *entry; |
| int state; |
| int rc = 0; |
| |
| /* |
| * Read in the buffer containing the TCP table data |
| */ |
| if (!auto_nlist(TCP_SYMBOL, (char *)&table, sizeof(table))) { |
| DEBUGMSGTL(("tcp-mib/tcpConn_openbsd", "Failed to read tcp_symbol\n")); |
| return -1; |
| } |
| |
| prev = (struct inpcb *)&CIRCLEQ_FIRST(&table.inpt_queue); |
| prev = NULL; |
| head = next = CIRCLEQ_FIRST(&table.inpt_queue); |
| |
| while (next) { |
| if (!NETSNMP_KLOOKUP(next, (char *)&inpcb, sizeof(inpcb))) { |
| DEBUGMSGTL(("tcp-mib/data_access/tcpConn", "klookup inpcb failed\n")); |
| break; |
| } |
| if (prev && CIRCLEQ_PREV(&inpcb, inp_queue) != prev) { |
| snmp_log(LOG_ERR,"tcbtable link error\n"); |
| break; |
| } |
| prev = next; |
| next = CIRCLEQ_NEXT(&inpcb, inp_queue); |
| if (!NETSNMP_KLOOKUP(inpcb.inp_ppcb, (char *)&tcpcb, sizeof(tcpcb))) { |
| DEBUGMSGTL(("tcp-mib/data_access/tcpConn", "klookup tcpcb failed\n")); |
| break; |
| } |
| state = StateMap[tcpcb.t_state]; |
| |
| if (load_flags) { |
| if (state == TCPCONNECTIONSTATE_LISTEN) { |
| if (load_flags & NETSNMP_ACCESS_TCPCONN_LOAD_NOLISTEN) { |
| DEBUGMSGT(("verbose:access:tcpconn:container", |
| " skipping listen\n")); |
| goto skip; |
| } |
| } |
| else if (load_flags & NETSNMP_ACCESS_TCPCONN_LOAD_ONLYLISTEN) { |
| DEBUGMSGT(("verbose:access:tcpconn:container", |
| " skipping non-listen\n")); |
| goto skip; |
| } |
| } |
| |
| #if !defined(NETSNMP_ENABLE_IPV6) |
| if (inpcb.inp_flags & INP_IPV6) |
| goto skip; |
| #endif |
| |
| entry = netsnmp_access_tcpconn_entry_create(); |
| if(NULL == entry) { |
| rc = -3; |
| break; |
| } |
| |
| /** oddly enough, these appear to already be in network order */ |
| entry->loc_port = ntohs(inpcb.inp_lport); |
| entry->rmt_port = ntohs(inpcb.inp_fport); |
| entry->tcpConnState = state; |
| entry->pid = 0; |
| |
| /** the addr string may need work */ |
| if (inpcb.inp_flags & INP_IPV6) { |
| entry->loc_addr_len = entry->rmt_addr_len = 16; |
| memcpy(entry->loc_addr, &inpcb.inp_laddr6, 16); |
| memcpy(entry->rmt_addr, &inpcb.inp_faddr6, 16); |
| } |
| else { |
| entry->loc_addr_len = entry->rmt_addr_len = 4; |
| memcpy(entry->loc_addr, &inpcb.inp_laddr, 4); |
| memcpy(entry->rmt_addr, &inpcb.inp_faddr, 4); |
| } |
| DEBUGMSGTL(("tcp-mib/data_access", "tcp %d %d %d\n", |
| entry->loc_addr_len, entry->loc_port, entry->rmt_port)); |
| |
| /* |
| * add entry to container |
| */ |
| entry->arbitrary_index = CONTAINER_SIZE(container) + 1; |
| CONTAINER_INSERT(container, entry); |
| skip: |
| if (head == next) |
| break; |
| } |
| |
| if(rc<0) |
| return rc; |
| |
| return 0; |
| } |