X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Flibsystemd%2Fsd-rtnl%2Flocal-addresses.c;fp=src%2Flibsystemd%2Fsd-rtnl%2Flocal-addresses.c;h=0000000000000000000000000000000000000000;hp=31bfa06066b157dcf30eee3a1800553262da4d81;hb=f48dd74a8d39b6074f820f904953f5cece03b9b0;hpb=796f9ac2ba3731fec49fd684b1adc02cfbe6f11b diff --git a/src/libsystemd/sd-rtnl/local-addresses.c b/src/libsystemd/sd-rtnl/local-addresses.c deleted file mode 100644 index 31bfa0606..000000000 --- a/src/libsystemd/sd-rtnl/local-addresses.c +++ /dev/null @@ -1,276 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright 2008-2011 Lennart Poettering - Copyright 2014 Tom Gundersen - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see . -***/ - -#include "sd-rtnl.h" -#include "rtnl-util.h" -#include "macro.h" -#include "local-addresses.h" - -static int address_compare(const void *_a, const void *_b) { - const struct local_address *a = _a, *b = _b; - - /* Order lowest scope first, IPv4 before IPv6, lowest interface index first */ - - if (a->family == AF_INET && b->family == AF_INET6) - return -1; - if (a->family == AF_INET6 && b->family == AF_INET) - return 1; - - if (a->scope < b->scope) - return -1; - if (a->scope > b->scope) - return 1; - - if (a->metric < b->metric) - return -1; - if (a->metric > b->metric) - return 1; - - if (a->ifindex < b->ifindex) - return -1; - if (a->ifindex > b->ifindex) - return 1; - - return memcmp(&a->address, &b->address, FAMILY_ADDRESS_SIZE(a->family)); -} - -int local_addresses(sd_rtnl *context, int ifindex, int af, struct local_address **ret) { - _cleanup_rtnl_message_unref_ sd_rtnl_message *req = NULL, *reply = NULL; - _cleanup_rtnl_unref_ sd_rtnl *rtnl = NULL; - _cleanup_free_ struct local_address *list = NULL; - size_t n_list = 0, n_allocated = 0; - sd_rtnl_message *m; - int r; - - assert(ret); - - if (context) - rtnl = sd_rtnl_ref(context); - else { - r = sd_rtnl_open(&rtnl, 0); - if (r < 0) - return r; - } - - r = sd_rtnl_message_new_addr(rtnl, &req, RTM_GETADDR, 0, af); - if (r < 0) - return r; - - r = sd_rtnl_call(rtnl, req, 0, &reply); - if (r < 0) - return r; - - for (m = reply; m; m = sd_rtnl_message_next(m)) { - struct local_address *a; - unsigned char flags; - uint16_t type; - int ifi, family; - - r = sd_rtnl_message_get_errno(m); - if (r < 0) - return r; - - r = sd_rtnl_message_get_type(m, &type); - if (r < 0) - return r; - if (type != RTM_NEWADDR) - continue; - - r = sd_rtnl_message_addr_get_ifindex(m, &ifi); - if (r < 0) - return r; - if (ifindex > 0 && ifi != ifindex) - continue; - - r = sd_rtnl_message_addr_get_family(m, &family); - if (r < 0) - return r; - if (af != AF_UNSPEC && af != family) - continue; - - r = sd_rtnl_message_addr_get_flags(m, &flags); - if (r < 0) - return r; - if (flags & IFA_F_DEPRECATED) - continue; - - if (!GREEDY_REALLOC0(list, n_allocated, n_list+1)) - return -ENOMEM; - - a = list + n_list; - - r = sd_rtnl_message_addr_get_scope(m, &a->scope); - if (r < 0) - return r; - - if (ifindex == 0 && (a->scope == RT_SCOPE_HOST || a->scope == RT_SCOPE_NOWHERE)) - continue; - - switch (family) { - - case AF_INET: - r = sd_rtnl_message_read_in_addr(m, IFA_LOCAL, &a->address.in); - if (r < 0) { - r = sd_rtnl_message_read_in_addr(m, IFA_ADDRESS, &a->address.in); - if (r < 0) - continue; - } - break; - - case AF_INET6: - r = sd_rtnl_message_read_in6_addr(m, IFA_LOCAL, &a->address.in6); - if (r < 0) { - r = sd_rtnl_message_read_in6_addr(m, IFA_ADDRESS, &a->address.in6); - if (r < 0) - continue; - } - break; - - default: - continue; - } - - a->ifindex = ifi; - a->family = family; - - n_list++; - }; - - if (n_list > 0) - qsort(list, n_list, sizeof(struct local_address), address_compare); - - *ret = list; - list = NULL; - - return (int) n_list; -} - -int local_gateways(sd_rtnl *context, int ifindex, int af, struct local_address **ret) { - _cleanup_rtnl_message_unref_ sd_rtnl_message *req = NULL, *reply = NULL; - _cleanup_rtnl_unref_ sd_rtnl *rtnl = NULL; - _cleanup_free_ struct local_address *list = NULL; - sd_rtnl_message *m = NULL; - size_t n_list = 0, n_allocated = 0; - int r; - - assert(ret); - - if (context) - rtnl = sd_rtnl_ref(context); - else { - r = sd_rtnl_open(&rtnl, 0); - if (r < 0) - return r; - } - - r = sd_rtnl_message_new_route(rtnl, &req, RTM_GETROUTE, af, RTPROT_UNSPEC); - if (r < 0) - return r; - - r = sd_rtnl_message_request_dump(req, true); - if (r < 0) - return r; - - r = sd_rtnl_call(rtnl, req, 0, &reply); - if (r < 0) - return r; - - for (m = reply; m; m = sd_rtnl_message_next(m)) { - struct local_address *a; - uint16_t type; - unsigned char dst_len, src_len; - uint32_t ifi; - int family; - - r = sd_rtnl_message_get_errno(m); - if (r < 0) - return r; - - r = sd_rtnl_message_get_type(m, &type); - if (r < 0) - return r; - if (type != RTM_NEWROUTE) - continue; - - /* We only care for default routes */ - r = sd_rtnl_message_route_get_dst_prefixlen(m, &dst_len); - if (r < 0) - return r; - if (dst_len != 0) - continue; - - r = sd_rtnl_message_route_get_src_prefixlen(m, &src_len); - if (r < 0) - return r; - if (src_len != 0) - continue; - - r = sd_rtnl_message_read_u32(m, RTA_OIF, &ifi); - if (r < 0) - return r; - if (ifindex > 0 && (int) ifi != ifindex) - continue; - - r = sd_rtnl_message_route_get_family(m, &family); - if (r < 0) - return r; - if (af != AF_UNSPEC && af != family) - continue; - - if (!GREEDY_REALLOC0(list, n_allocated, n_list + 1)) - return -ENOMEM; - - a = list + n_list; - - switch (family) { - case AF_INET: - r = sd_rtnl_message_read_in_addr(m, RTA_GATEWAY, &a->address.in); - if (r < 0) - continue; - - break; - case AF_INET6: - r = sd_rtnl_message_read_in6_addr(m, RTA_GATEWAY, &a->address.in6); - if (r < 0) - continue; - - break; - default: - continue; - } - - sd_rtnl_message_read_u32(m, RTA_PRIORITY, &a->metric); - - a->ifindex = ifi; - a->family = family; - - n_list++; - } - - if (n_list > 0) - qsort(list, n_list, sizeof(struct local_address), address_compare); - - *ret = list; - list = NULL; - - return (int) n_list; -}