/* * route-hpux.c * * Copyright (c) 2000 Dug Song * * $Id: route-hpux.c 483 2004-01-14 04:52:11Z dugsong $ */ #include "config.h" #include #include #include #include #include #include #include #include #include #include #include "dnet.h" #define ADDR_ISHOST(a) (((a)->addr_type == ADDR_TYPE_IP && \ (a)->addr_bits == IP_ADDR_BITS) || \ ((a)->addr_type == ADDR_TYPE_IP6 && \ (a)->addr_bits == IP6_ADDR_BITS)) struct route_handle { int fd; }; route_t * route_open(void) { route_t *r; if ((r = calloc(1, sizeof(*r))) != NULL) { if ((r->fd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) return (route_close(r)); } return (r); } int route_add(route_t *r, const struct route_entry *entry) { struct rtentry rt; struct addr dst; memset(&rt, 0, sizeof(rt)); rt.rt_flags = RTF_UP | RTF_GATEWAY; if (ADDR_ISHOST(&entry->route_dst)) { rt.rt_flags |= RTF_HOST; memcpy(&dst, &entry->route_dst, sizeof(dst)); } else addr_net(&entry->route_dst, &dst); if (addr_ntos(&dst, &rt.rt_dst) < 0 || addr_ntos(&entry->route_gw, &rt.rt_gateway) < 0 || addr_btom(entry->route_dst.addr_bits, &rt.rt_subnetmask, IP_ADDR_LEN) < 0) return (-1); return (ioctl(r->fd, SIOCADDRT, &rt)); } int route_delete(route_t *r, const struct route_entry *entry) { struct rtentry rt; struct addr dst; memset(&rt, 0, sizeof(rt)); rt.rt_flags = RTF_UP; if (ADDR_ISHOST(&entry->route_dst)) { rt.rt_flags |= RTF_HOST; memcpy(&dst, &entry->route_dst, sizeof(dst)); } else addr_net(&entry->route_dst, &dst); if (addr_ntos(&dst, &rt.rt_dst) < 0 || addr_btom(entry->route_dst.addr_bits, &rt.rt_subnetmask, IP_ADDR_LEN) < 0) return (-1); return (ioctl(r->fd, SIOCDELRT, &rt)); } int route_get(route_t *r, struct route_entry *entry) { struct rtreq rtr; memset(&rtr, 0, sizeof(rtr)); /* XXX - gross hack for default route */ if (entry->route_dst.addr_ip == IP_ADDR_ANY) { rtr.rtr_destaddr = htonl(0x60060606); rtr.rtr_subnetmask = 0xffffffff; } else { memcpy(&rtr.rtr_destaddr, &entry->route_dst.addr_ip, IP_ADDR_LEN); if (entry->route_dst.addr_bits < IP_ADDR_BITS) addr_btom(entry->route_dst.addr_bits, &rtr.rtr_subnetmask, IP_ADDR_LEN); } if (ioctl(r->fd, SIOCGRTENTRY, &rtr) < 0) return (-1); if (rtr.rtr_gwayaddr == 0) { errno = ESRCH; return (-1); } entry->intf_name[0] = '\0'; entry->route_gw.addr_type = ADDR_TYPE_IP; entry->route_gw.addr_bits = IP_ADDR_BITS; memcpy(&entry->route_gw.addr_ip, &rtr.rtr_gwayaddr, IP_ADDR_LEN); return (0); } #define MAX_RTENTRIES 256 /* XXX */ int route_loop(route_t *r, route_handler callback, void *arg) { struct nmparms nm; struct route_entry entry; mib_ipRouteEnt rtentries[MAX_RTENTRIES]; int fd, i, n, ret; if ((fd = open_mib("/dev/ip", O_RDWR, 0 /* XXX */, 0)) < 0) return (-1); nm.objid = ID_ipRouteTable; nm.buffer = rtentries; n = sizeof(rtentries); nm.len = &n; if (get_mib_info(fd, &nm) < 0) { close_mib(fd); return (-1); } close_mib(fd); n /= sizeof(*rtentries); ret = 0; for (i = 0; i < n; i++) { if (rtentries[i].Type != NMDIRECT && rtentries[i].Type != NMREMOTE) continue; entry.intf_name[0] = '\0'; entry.route_dst.addr_type = entry.route_gw.addr_type = ADDR_TYPE_IP; entry.route_dst.addr_bits = entry.route_gw.addr_bits = IP_ADDR_BITS; entry.route_dst.addr_ip = rtentries[i].Dest; addr_mtob(&rtentries[i].Mask, IP_ADDR_LEN, &entry.route_dst.addr_bits); entry.route_gw.addr_ip = rtentries[i].NextHop; if ((ret = callback(&entry, arg)) != 0) break; } return (ret); } route_t * route_close(route_t *r) { if (r != NULL) { if (r->fd >= 0) close(r->fd); free(r); } return (NULL); }