| /* |
| * tcpConnTable MIB architecture support for FreeBSD/DragonFlyBSD |
| */ |
| #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 "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; |
| } |
| |
| #if defined(freebsd4) || defined(darwin) |
| #define NS_ELEM struct xtcpcb |
| #else |
| #define NS_ELEM struct xinpcb |
| #endif |
| |
| /** |
| * |
| * @retval 0 no errors |
| * @retval !0 errors |
| */ |
| static int |
| _load(netsnmp_container *container, u_int load_flags) |
| { |
| size_t len; |
| int sname[] = { CTL_NET, PF_INET, IPPROTO_TCP, TCPCTL_PCBLIST }; |
| char *tcpcb_buf = NULL; |
| #if defined(dragonfly) |
| struct xinpcb *xig = NULL; |
| int StateMap[] = { 1, 1, 2, 3, 4, 5, 8, 6, 10, 9, 7, 11 }; |
| #else |
| struct xinpgen *xig = NULL; |
| int StateMap[] = { 1, 2, 3, 4, 5, 8, 6, 10, 9, 7, 11 }; |
| #endif |
| netsnmp_tcpconn_entry *entry; |
| int state; |
| int rc = 0; |
| |
| /* |
| * Read in the buffer containing the TCP table data |
| */ |
| len = 0; |
| if (sysctl(sname, 4, 0, &len, 0, 0) < 0 || |
| (tcpcb_buf = malloc(len)) == NULL) |
| return -1; |
| if (sysctl(sname, 4, tcpcb_buf, &len, 0, 0) < 0) { |
| free(tcpcb_buf); |
| return -1; |
| } |
| |
| /* |
| * Unpick this into the constituent 'xinpgen' structures, and extract |
| * the 'inpcb' elements into a linked list (built in reverse) |
| */ |
| #if defined(dragonfly) |
| xig = (struct xinpcb *) tcpcb_buf; |
| #else |
| xig = (struct xinpgen *) tcpcb_buf; |
| xig = (struct xinpgen *) ((char *) xig + xig->xig_len); |
| #endif |
| |
| #if defined(dragonfly) |
| while (xig && (xig->xi_len > sizeof(struct xinpcb))) |
| #else |
| while (xig && (xig->xig_len > sizeof(struct xinpgen))) |
| #endif |
| { |
| NS_ELEM pcb = *((NS_ELEM *) xig); |
| #if defined(dragonfly) |
| xig = (struct xinpcb *) ((char *) xig + xig->xi_len); |
| #else |
| xig = (struct xinpgen *) ((char *) xig + xig->xig_len); |
| #endif |
| state = StateMap[pcb.xt_tp.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")); |
| continue; |
| } |
| } |
| else if (load_flags & NETSNMP_ACCESS_TCPCONN_LOAD_ONLYLISTEN) { |
| DEBUGMSGT(("verbose:access:tcpconn:container", |
| " skipping non-listen\n")); |
| continue; |
| } |
| } |
| |
| #if !defined(NETSNMP_ENABLE_IPV6) |
| if (pcb.xt_inp.inp_vflag & INP_IPV6) |
| continue; |
| #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 = htons(pcb.xt_inp.inp_lport); |
| entry->rmt_port = htons(pcb.xt_inp.inp_fport); |
| entry->tcpConnState = state; |
| entry->pid = 0; |
| |
| /** the addr string may need work */ |
| if (pcb.xt_inp.inp_vflag & INP_IPV6) { |
| entry->loc_addr_len = entry->rmt_addr_len = 16; |
| memcpy(entry->loc_addr, &pcb.xt_inp.in6p_laddr, 16); |
| memcpy(entry->rmt_addr, &pcb.xt_inp.in6p_faddr, 16); |
| } |
| else { |
| entry->loc_addr_len = entry->rmt_addr_len = 4; |
| memcpy(entry->loc_addr, &pcb.xt_inp.inp_laddr, 4); |
| memcpy(entry->rmt_addr, &pcb.xt_inp.inp_faddr, 4); |
| } |
| |
| /* |
| * add entry to container |
| */ |
| entry->arbitrary_index = CONTAINER_SIZE(container) + 1; |
| CONTAINER_INSERT(container, entry); |
| } |
| |
| if(rc<0) |
| return rc; |
| |
| return 0; |
| } |