diff options
Diffstat (limited to 'src/network/networkd-address.c')
| -rw-r--r-- | src/network/networkd-address.c | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/src/network/networkd-address.c b/src/network/networkd-address.c new file mode 100644 index 0000000000..9a7106e834 --- /dev/null +++ b/src/network/networkd-address.c @@ -0,0 +1,169 @@ +/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ + +/*** + This file is part of systemd. + + Copyright 2013 Tom Gundersen <teg@jklm.no> + + 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 <http://www.gnu.org/licenses/>. +***/ + +#include <net/if.h> + +#include "networkd.h" + +#include "utf8.h" +#include "util.h" +#include "conf-parser.h" +#include "net-util.h" + +int address_new(Network *network, Address **ret) { + _cleanup_address_free_ Address *address = NULL; + + address = new0(Address, 1); + if (!address) + return -ENOMEM; + + address->network = network; + + LIST_PREPEND(addresses, network->addresses, address); + + *ret = address; + address = NULL; + + return 0; +} + +void address_free(Address *address) { + if (!address) + return; + + LIST_REMOVE(addresses, address->network->addresses, address); + + free(address->label); + free(address); +} + +int address_configure(Manager *manager, Address *address, Link *link) { + _cleanup_sd_rtnl_message_unref_ sd_rtnl_message *req = NULL; + int r; + + r = sd_rtnl_message_addr_new(RTM_NEWADDR, link->ifindex, + address->family, address->prefixlen, + IFA_F_PERMANENT, RT_SCOPE_UNIVERSE, &req); + if (r < 0) { + log_error("Could not allocate RTM_NEWADDR message: %s", + strerror(-r)); + return r; + } + + r = sd_rtnl_message_append(req, IFA_LOCAL, &address->in_addr); + if (r < 0) { + log_error("Could not append IFA_LOCAL attribute: %s", + strerror(-r)); + return r; + } + + if (address->family == AF_INET) { + struct in_addr broadcast; + + broadcast.s_addr = address->in_addr.in.s_addr | + htonl(0xfffffffflu >> address->prefixlen); + + r = sd_rtnl_message_append(req, IFA_BROADCAST, &broadcast); + if (r < 0) { + log_error("Could not append IFA_BROADCAST attribute: %s", + strerror(-r)); + return r; + } + } + + if (address->label) { + r = sd_rtnl_message_append(req, IFA_LABEL, address->label); + if (r < 0) { + log_error("Could not append IFA_LABEL attribute: %s", + strerror(-r)); + return r; + } + } + + r = sd_rtnl_send_with_reply_and_block(manager->rtnl, req, 0, NULL); + if (r < 0) { + log_error("Could not configure address: %s", strerror(-r)); + return r != -EEXIST ? r : 0; + } + + log_info("Configured interface address"); + + return 0; +} + +int config_parse_address(const char *unit, + const char *filename, + unsigned line, + const char *section, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + _cleanup_address_free_ Address *n = NULL; + _cleanup_free_ char *address = NULL; + const char *e; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + assert(data); + + r = address_new(userdata, &n); + if (r < 0) + return r; + + /* Address=address/prefixlen */ + + /* prefixlen */ + e = strchr(rvalue, '/'); + if (e) { + unsigned i; + r = safe_atou(e + 1, &i); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, EINVAL, + "Interface prefix length is invalid, " + "ignoring assignment: %s", e + 1); + return 0; + } + + n->prefixlen = (unsigned char) i; + address = strndup(rvalue, e - rvalue); + if (!address) + return log_oom(); + } else { + address = strdup(rvalue); + if (!address) + return log_oom(); + } + + r = net_parse_inaddr(address, &n->family, &n->in_addr); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, EINVAL, + "Address is invalid, ignoring assignment: %s", address); + return 0; + } + + n = NULL; + + return 0; +} |