--- /dev/null
+/* SPDX-License-Identifier: LGPL-2.1+ */
+
+#include "ether-addr-util.h"
+#include "fd-util.h"
+#include "fileio.h"
+#include "hostname-util.h"
+#include "log.h"
+#include "macro.h"
+#include "network-generator.h"
+#include "parse-util.h"
+#include "proc-cmdline.h"
+#include "socket-util.h"
+#include "string-table.h"
+#include "string-util.h"
+#include "strv.h"
+
+/*
+ # .network
+ ip={dhcp|on|any|dhcp6|auto6|either6}
+ ip=<interface>:{dhcp|on|any|dhcp6|auto6}[:[<mtu>][:<macaddr>]]
+ ip=<client-IP>:[<peer>]:<gateway-IP>:<netmask>:<client_hostname>:<interface>:{none|off|dhcp|on|any|dhcp6|auto6|ibft}[:[<mtu>][:<macaddr>]]
+ ip=<client-IP>:[<peer>]:<gateway-IP>:<netmask>:<client_hostname>:<interface>:{none|off|dhcp|on|any|dhcp6|auto6|ibft}[:[<dns1>][:<dns2>]]
+ rd.route=<net>/<netmask>:<gateway>[:<interface>]
+ nameserver=<IP> [nameserver=<IP> ...]
+ rd.peerdns=0
+
+ # .link
+ ifname=<interface>:<MAC>
+
+ # .netdev
+ vlan=<vlanname>:<phydevice>
+ bond=<bondname>[:<bondslaves>:[:<options>[:<mtu>]]]
+ team=<teammaster>:<teamslaves> # not supported
+ bridge=<bridgename>:<ethnames>
+
+ # ignored
+ bootdev=<interface>
+ BOOTIF=<MAC>
+ rd.bootif=0
+ biosdevname=0
+ rd.neednet=1
+*/
+
+static const char * const dracut_dhcp_type_table[_DHCP_TYPE_MAX] = {
+ [DHCP_TYPE_NONE] = "none",
+ [DHCP_TYPE_OFF] = "off",
+ [DHCP_TYPE_ON] = "on",
+ [DHCP_TYPE_ANY] = "any",
+ [DHCP_TYPE_DHCP] = "dhcp",
+ [DHCP_TYPE_DHCP6] = "dhcp6",
+ [DHCP_TYPE_AUTO6] = "auto6",
+ [DHCP_TYPE_EITHER6] = "either6",
+ [DHCP_TYPE_IBFT] = "ibft",
+};
+
+DEFINE_PRIVATE_STRING_TABLE_LOOKUP_FROM_STRING(dracut_dhcp_type, DHCPType);
+
+static const char * const networkd_dhcp_type_table[_DHCP_TYPE_MAX] = {
+ [DHCP_TYPE_NONE] = "no",
+ [DHCP_TYPE_OFF] = "no",
+ [DHCP_TYPE_ON] = "yes",
+ [DHCP_TYPE_ANY] = "yes",
+ [DHCP_TYPE_DHCP] = "ipv4",
+ [DHCP_TYPE_DHCP6] = "ipv6",
+ [DHCP_TYPE_AUTO6] = "no", /* TODO: enable other setting? */
+ [DHCP_TYPE_EITHER6] = "ipv6", /* TODO: enable other setting? */
+ [DHCP_TYPE_IBFT] = "no",
+};
+
+DEFINE_PRIVATE_STRING_TABLE_LOOKUP_TO_STRING(networkd_dhcp_type, DHCPType);
+
+static Address *address_free(Address *address) {
+ if (!address)
+ return NULL;
+
+ if (address->network)
+ LIST_REMOVE(addresses, address->network->addresses, address);
+
+ return mfree(address);
+}
+
+static int address_new(Network *network, int family, unsigned char prefixlen,
+ union in_addr_union *addr, union in_addr_union *peer, Address **ret) {
+ Address *address;
+
+ assert(network);
+
+ address = new(Address, 1);
+ if (!address)
+ return -ENOMEM;
+
+ *address = (Address) {
+ .family = family,
+ .prefixlen = prefixlen,
+ .address = *addr,
+ .peer = *peer,
+ };
+
+ LIST_PREPEND(addresses, network->addresses, address);
+
+ address->network = network;
+
+ if (ret)
+ *ret = address;
+ return 0;
+}
+
+static Route *route_free(Route *route) {
+ if (!route)
+ return NULL;
+
+ if (route->network)
+ LIST_REMOVE(routes, route->network->routes, route);
+
+ return mfree(route);
+}
+
+static int route_new(Network *network, int family, unsigned char prefixlen,
+ union in_addr_union *dest, union in_addr_union *gateway, Route **ret) {
+ Route *route;
+
+ assert(network);
+
+ route = new(Route, 1);
+ if (!route)
+ return -ENOMEM;
+
+ *route = (Route) {
+ .family = family,
+ .prefixlen = prefixlen,
+ .dest = dest ? *dest : IN_ADDR_NULL,
+ .gateway = *gateway,
+ };
+
+ LIST_PREPEND(routes, network->routes, route);
+
+ route->network = network;
+
+ if (ret)
+ *ret = route;
+ return 0;
+}
+
+static Network *network_free(Network *network) {
+ Address *address;
+ Route *route;
+
+ if (!network)
+ return NULL;
+
+ free(network->ifname);
+ free(network->hostname);
+ strv_free(network->dns);
+ free(network->vlan);
+ free(network->bridge);
+ free(network->bond);
+
+ while ((address = network->addresses))
+ address_free(address);
+
+ while ((route = network->routes))
+ route_free(route);
+
+ return mfree(network);
+}
+
+DEFINE_TRIVIAL_CLEANUP_FUNC(Network*, network_free);
+
+static int network_new(Context *context, const char *name, Network **ret) {
+ _cleanup_(network_freep) Network *network = NULL;
+ _cleanup_free_ char *ifname = NULL;
+ int r;
+
+ assert(context);
+
+ if (!isempty(name) && !ifname_valid(name))
+ return -EINVAL;
+
+ ifname = strdup(name);
+ if (!ifname)
+ return -ENOMEM;
+
+ network = new(Network, 1);
+ if (!network)
+ return -ENOMEM;
+
+ *network = (Network) {
+ .ifname = TAKE_PTR(ifname),
+ .dhcp_type = _DHCP_TYPE_INVALID,
+ .dhcp_use_dns = -1,
+ };
+
+ r = hashmap_ensure_allocated(&context->networks_by_name, &string_hash_ops);
+ if (r < 0)
+ return r;
+
+ r = hashmap_put(context->networks_by_name, network->ifname, network);
+ if (r < 0)
+ return r;
+
+ if (ret)
+ *ret = network;
+
+ TAKE_PTR(network);
+ return 0;
+}
+
+Network *network_get(Context *context, const char *ifname) {
+ return hashmap_get(context->networks_by_name, ifname);
+}
+
+static NetDev *netdev_free(NetDev *netdev) {
+ if (!netdev)
+ return NULL;
+
+ free(netdev->ifname);
+ free(netdev->kind);
+ return mfree(netdev);
+}
+
+DEFINE_TRIVIAL_CLEANUP_FUNC(NetDev*, netdev_free);
+
+static int netdev_new(Context *context, const char *_kind, const char *_ifname, NetDev **ret) {
+ _cleanup_(netdev_freep) NetDev *netdev = NULL;
+ _cleanup_free_ char *kind = NULL, *ifname = NULL;
+ int r;
+
+ assert(context);
+
+ if (!ifname_valid(_ifname))
+ return -EINVAL;
+
+ kind = strdup(_kind);
+ if (!kind)
+ return -ENOMEM;
+
+ ifname = strdup(_ifname);
+ if (!ifname)
+ return -ENOMEM;
+
+ netdev = new(NetDev, 1);
+ if (!netdev)
+ return -ENOMEM;
+
+ *netdev = (NetDev) {
+ .kind = TAKE_PTR(kind),
+ .ifname = TAKE_PTR(ifname),
+ };
+
+ r = hashmap_ensure_allocated(&context->netdevs_by_name, &string_hash_ops);
+ if (r < 0)
+ return r;
+
+ r = hashmap_put(context->netdevs_by_name, netdev->ifname, netdev);
+ if (r < 0)
+ return r;
+
+ if (ret)
+ *ret = netdev;
+
+ TAKE_PTR(netdev);
+ return 0;
+}
+
+NetDev *netdev_get(Context *context, const char *ifname) {
+ return hashmap_get(context->netdevs_by_name, ifname);
+}
+
+static Link *link_free(Link *link) {
+ if (!link)
+ return NULL;
+
+ free(link->ifname);
+ return mfree(link);
+}
+
+DEFINE_TRIVIAL_CLEANUP_FUNC(Link*, link_free);
+
+static int link_new(Context *context, const char *name, struct ether_addr *mac, Link **ret) {
+ _cleanup_(link_freep) Link *link = NULL;
+ _cleanup_free_ char *ifname = NULL;
+ int r;
+
+ assert(context);
+
+ if (!ifname_valid(name))
+ return -EINVAL;
+
+ ifname = strdup(name);
+ if (!ifname)
+ return -ENOMEM;
+
+ link = new(Link, 1);
+ if (!link)
+ return -ENOMEM;
+
+ *link = (Link) {
+ .ifname = TAKE_PTR(ifname),
+ .mac = *mac,
+ };
+
+ r = hashmap_ensure_allocated(&context->links_by_name, &string_hash_ops);
+ if (r < 0)
+ return r;
+
+ r = hashmap_put(context->links_by_name, link->ifname, link);
+ if (r < 0)
+ return r;
+
+ if (ret)
+ *ret = link;
+
+ TAKE_PTR(link);
+ return 0;
+}
+
+Link *link_get(Context *context, const char *ifname) {
+ return hashmap_get(context->links_by_name, ifname);
+}
+
+static int network_set_dhcp_type(Context *context, const char *ifname, const char *dhcp_type) {
+ Network *network;
+ DHCPType t;
+ int r;
+
+ t = dracut_dhcp_type_from_string(dhcp_type);
+ if (t < 0)
+ return -EINVAL;
+
+ network = network_get(context, ifname);
+ if (!network) {
+ r = network_new(context, ifname, &network);
+ if (r < 0)
+ return r;
+ }
+
+ network->dhcp_type = t;
+ return 0;
+}
+
+static int network_set_hostname(Context *context, const char *ifname, const char *hostname) {
+ Network *network;
+
+ network = network_get(context, ifname);
+ if (!network)
+ return -ENODEV;
+
+ return free_and_strdup(&network->hostname, hostname);
+}
+
+static int network_set_mtu(Context *context, const char *ifname, int family, const char *mtu) {
+ Network *network;
+
+ network = network_get(context, ifname);
+ if (!network)
+ return -ENODEV;
+
+ return parse_mtu(family, mtu, &network->mtu);
+}
+
+static int network_set_mac_address(Context *context, const char *ifname, const char *mac) {
+ Network *network;
+
+ network = network_get(context, ifname);
+ if (!network)
+ return -ENODEV;
+
+ return ether_addr_from_string(mac, &network->mac);
+}
+
+static int network_set_address(Context *context, const char *ifname, int family, unsigned char prefixlen,
+ union in_addr_union *addr, union in_addr_union *peer) {
+ Network *network;
+
+ if (in_addr_is_null(family, addr) != 0)
+ return 0;
+
+ network = network_get(context, ifname);
+ if (!network)
+ return -ENODEV;
+
+ return address_new(network, family, prefixlen, addr, peer, NULL);
+}
+
+static int network_set_route(Context *context, const char *ifname, int family, unsigned char prefixlen,
+ union in_addr_union *dest, union in_addr_union *gateway) {
+ Network *network;
+ int r;
+
+ if (in_addr_is_null(family, gateway) != 0)
+ return 0;
+
+ network = network_get(context, ifname);
+ if (!network) {
+ r = network_new(context, ifname, &network);
+ if (r < 0)
+ return r;
+ }
+
+ return route_new(network, family, prefixlen, dest, gateway, NULL);
+}
+
+static int network_set_dns(Context *context, const char *ifname, const char *dns) {
+ union in_addr_union a;
+ Network *network;
+ int family, r;
+
+ r = in_addr_from_string_auto(dns, &family, &a);
+ if (r < 0)
+ return r;
+
+ network = network_get(context, ifname);
+ if (!network) {
+ r = network_new(context, ifname, &network);
+ if (r < 0)
+ return r;
+ }
+
+ return strv_extend(&network->dns, dns);
+}
+
+static int network_set_dhcp_use_dns(Context *context, const char *ifname, bool value) {
+ Network *network;
+ int r;
+
+ network = network_get(context, ifname);
+ if (!network) {
+ r = network_new(context, ifname, &network);
+ if (r < 0)
+ return r;
+ }
+
+ network->dhcp_use_dns = value;
+
+ return 0;
+}
+
+static int network_set_vlan(Context *context, const char *ifname, const char *value) {
+ Network *network;
+ int r;
+
+ network = network_get(context, ifname);
+ if (!network) {
+ r = network_new(context, ifname, &network);
+ if (r < 0)
+ return r;
+ }
+
+ return free_and_strdup(&network->vlan, value);
+}
+
+static int network_set_bridge(Context *context, const char *ifname, const char *value) {
+ Network *network;
+ int r;
+
+ network = network_get(context, ifname);
+ if (!network) {
+ r = network_new(context, ifname, &network);
+ if (r < 0)
+ return r;
+ }
+
+ return free_and_strdup(&network->bridge, value);
+}
+
+static int network_set_bond(Context *context, const char *ifname, const char *value) {
+ Network *network;
+ int r;
+
+ network = network_get(context, ifname);
+ if (!network) {
+ r = network_new(context, ifname, &network);
+ if (r < 0)
+ return r;
+ }
+
+ return free_and_strdup(&network->bond, value);
+}
+
+static int parse_cmdline_ip_mtu_mac(Context *context, const char *ifname, int family, const char *value) {
+ const char *mtu, *p;
+ int r;
+
+ /* [<mtu>][:<macaddr>] */
+
+ p = strchr(value, ':');
+ if (!p)
+ mtu = value;
+ else
+ mtu = strndupa(value, p - value);
+
+ r = network_set_mtu(context, ifname, family, mtu);
+ if (r < 0)
+ return r;
+
+ if (!p)
+ return 0;
+
+ r = network_set_mac_address(context, ifname, p + 1);
+ if (r < 0)
+ return r;
+
+ return 0;
+}
+
+static int parse_ip_address_one(int family, const char **value, union in_addr_union *ret) {
+ const char *p = *value, *q, *buf;
+ int r;
+
+ if (p[0] == ':') {
+ *value = p + 1;
+ return 0;
+ }
+
+ if (family == AF_INET6) {
+ if (p[0] != '[')
+ return -EINVAL;
+
+ q = strchr(p + 1, ']');
+ if (!q)
+ return -EINVAL;
+
+ if (q[1] != ':')
+ return -EINVAL;
+
+ buf = strndupa(p + 1, q - p - 1);
+ p = q + 2;
+ } else {
+ q = strchr(p, ':');
+ if (!q)
+ return -EINVAL;
+
+ buf = strndupa(p, q - p);
+ p = q + 1;
+ }
+
+ r = in_addr_from_string(family, buf, ret);
+ if (r < 0)
+ return r;
+
+ *value = p;
+ return 1;
+}
+
+static int parse_netmask_or_prefixlen(int family, const char **value, unsigned char *ret) {
+ union in_addr_union netmask;
+ const char *p, *q;
+ int r;
+
+ r = parse_ip_address_one(family, value, &netmask);
+ if (r > 0) {
+ if (family == AF_INET6)
+ /* TODO: Not supported yet. */
+ return -EINVAL;
+
+ *ret = in4_addr_netmask_to_prefixlen(&netmask.in);
+ } else if (r == 0)
+ *ret = family == AF_INET6 ? 128 : 32;
+ else {
+ p = strchr(*value, ':');
+ if (!p)
+ return -EINVAL;
+
+ q = strndupa(*value, p - *value);
+ r = safe_atou8(q, ret);
+ if (r < 0)
+ return r;
+
+ *value = p + 1;
+ }
+
+ return 0;
+}
+
+static int parse_cmdline_ip_address(Context *context, int family, const char *value) {
+ union in_addr_union addr = {}, peer = {}, gateway = {};
+ const char *hostname, *ifname, *dhcp_type, *dns, *p;
+ unsigned char prefixlen;
+ int r;
+
+ /* ip=<client-IP>:[<peer>]:<gateway-IP>:<netmask>:<client_hostname>:<interface>:{none|off|dhcp|on|any|dhcp6|auto6|ibft}[:[<mtu>][:<macaddr>]]
+ * ip=<client-IP>:[<peer>]:<gateway-IP>:<netmask>:<client_hostname>:<interface>:{none|off|dhcp|on|any|dhcp6|auto6|ibft}[:[<dns1>][:<dns2>]] */
+
+ r = parse_ip_address_one(family, &value, &addr);
+ if (r < 0)
+ return r;
+ r = parse_ip_address_one(family, &value, &peer);
+ if (r < 0)
+ return r;
+ r = parse_ip_address_one(family, &value, &gateway);
+ if (r < 0)
+ return r;
+ r = parse_netmask_or_prefixlen(family, &value, &prefixlen);
+ if (r < 0)
+ return r;
+
+ /* hostname */
+ p = strchr(value, ':');
+ if (!p)
+ return -EINVAL;
+
+ hostname = strndupa(value, p - value);
+ if (!hostname_is_valid(hostname, false))
+ return -EINVAL;
+
+ value = p + 1;
+
+ /* ifname */
+ p = strchr(value, ':');
+ if (!p)
+ return -EINVAL;
+
+ ifname = strndupa(value, p - value);
+
+ value = p + 1;
+
+ /* dhcp_type */
+ p = strchr(value, ':');
+ if (!p)
+ dhcp_type = value;
+ else
+ dhcp_type = strndupa(value, p - value);
+
+ r = network_set_dhcp_type(context, ifname, dhcp_type);
+ if (r < 0)
+ return r;
+
+ /* set values */
+ r = network_set_hostname(context, ifname, hostname);
+ if (r < 0)
+ return r;
+
+ r = network_set_address(context, ifname, family, prefixlen, &addr, &peer);
+ if (r < 0)
+ return r;
+
+ r = network_set_route(context, ifname, family, 0, NULL, &gateway);
+ if (r < 0)
+ return r;
+
+ if (!p)
+ return 0;
+
+ /* First, try [<mtu>][:<macaddr>] */
+ r = parse_cmdline_ip_mtu_mac(context, ifname, AF_UNSPEC, p + 1);
+ if (r >= 0)
+ return 0;
+
+ /* Next, try [<dns1>][:<dns2>] */
+ value = p + 1;
+ p = strchr(value, ':');
+ if (!p) {
+ r = network_set_dns(context, ifname, value);
+ if (r < 0)
+ return r;
+ } else {
+ dns = strndupa(value, p - value);
+ r = network_set_dns(context, ifname, dns);
+ if (r < 0)
+ return r;
+ r = network_set_dns(context, ifname, p + 1);
+ if (r < 0)
+ return r;
+ }
+
+ return 0;
+}
+
+static int parse_cmdline_ip_interface(Context *context, const char *value) {
+ const char *ifname, *dhcp_type, *p;
+ int r;
+
+ /* ip=<interface>:{dhcp|on|any|dhcp6|auto6}[:[<mtu>][:<macaddr>]] */
+
+ p = strchr(value, ':');
+ if (!p)
+ return -EINVAL;
+
+ ifname = strndupa(value, p - value);
+
+ value = p + 1;
+ p = strchr(value, ':');
+ if (!p)
+ dhcp_type = value;
+ else
+ dhcp_type = strndupa(value, p - value);
+
+ r = network_set_dhcp_type(context, ifname, dhcp_type);
+ if (r < 0)
+ return r;
+
+ if (!p)
+ return 0;
+
+ return parse_cmdline_ip_mtu_mac(context, ifname, AF_UNSPEC, p + 1);
+}
+
+static int parse_cmdline_ip(Context *context, const char *key, const char *value) {
+ const char *p;
+ int r;
+
+ if (proc_cmdline_value_missing(key, value))
+ return -EINVAL;
+
+ p = strchr(value, ':');
+ if (!p)
+ /* ip={dhcp|on|any|dhcp6|auto6|either6} */
+ return network_set_dhcp_type(context, "", value);
+
+ if (value[0] == '[')
+ return parse_cmdline_ip_address(context, AF_INET6, value);
+
+ r = parse_cmdline_ip_address(context, AF_INET, value);
+ if (r < 0)
+ return parse_cmdline_ip_interface(context, value);
+
+ return 0;
+}
+
+static int parse_cmdline_rd_route(Context *context, const char *key, const char *value) {
+ union in_addr_union addr = {}, gateway = {};
+ unsigned char prefixlen;
+ const char *buf, *p;
+ int family, r;
+
+ /* rd.route=<net>/<netmask>:<gateway>[:<interface>] */
+
+ if (proc_cmdline_value_missing(key, value))
+ return -EINVAL;
+
+ if (value[0] == '[') {
+ p = strchr(value, ']');
+ if (!p)
+ return -EINVAL;
+
+ if (p[1] != ':')
+ return -EINVAL;
+
+ buf = strndupa(value + 1, p - value - 1);
+ value = p + 2;
+ family = AF_INET6;
+ } else {
+ p = strchr(value, ':');
+ if (!p)
+ return -EINVAL;
+
+ buf = strndupa(value, p - value);
+ value = p + 1;
+ family = AF_INET;
+ }
+
+ r = in_addr_prefix_from_string(buf, family, &addr, &prefixlen);
+ if (r < 0)
+ return r;
+
+ p = strchr(value, ':');
+ if (!p)
+ value = strjoina(value, ":");
+
+ r = parse_ip_address_one(family, &value, &gateway);
+ if (r < 0)
+ return r;
+
+ return network_set_route(context, value, family, prefixlen, &addr, &gateway);
+}
+
+static int parse_cmdline_nameserver(Context *context, const char *key, const char *value) {
+ if (proc_cmdline_value_missing(key, value))
+ return -EINVAL;
+
+ return network_set_dns(context, "", value);
+}
+
+static int parse_cmdline_rd_peerdns(Context *context, const char *key, const char *value) {
+ int r;
+
+ if (proc_cmdline_value_missing(key, value))
+ return network_set_dhcp_use_dns(context, "", true);
+
+ r = parse_boolean(value);
+ if (r < 0)
+ return r;
+
+ return network_set_dhcp_use_dns(context, "", r);
+}
+
+static int parse_cmdline_vlan(Context *context, const char *key, const char *value) {
+ const char *name, *p;
+ NetDev *netdev;
+ int r;
+
+ if (proc_cmdline_value_missing(key, value))
+ return -EINVAL;
+
+ p = strchr(value, ':');
+ if (!p)
+ return -EINVAL;
+
+ name = strndupa(value, p - value);
+
+ netdev = netdev_get(context, name);
+ if (!netdev) {
+ r = netdev_new(context, "vlan", name, &netdev);
+ if (r < 0)
+ return r;
+ }
+
+ return network_set_vlan(context, p + 1, name);
+}
+
+static int parse_cmdline_bridge(Context *context, const char *key, const char *value) {
+ const char *name, *p;
+ NetDev *netdev;
+ int r;
+
+ if (proc_cmdline_value_missing(key, value))
+ return -EINVAL;
+
+ p = strchr(value, ':');
+ if (!p)
+ return -EINVAL;
+
+ name = strndupa(value, p - value);
+
+ netdev = netdev_get(context, name);
+ if (!netdev) {
+ r = netdev_new(context, "bridge", name, &netdev);
+ if (r < 0)
+ return r;
+ }
+
+ p++;
+ if (isempty(p))
+ return -EINVAL;
+
+ for (;;) {
+ _cleanup_free_ char *word = NULL;
+
+ r = extract_first_word(&p, &word, ",", 0);
+ if (r == 0)
+ return 0;
+ if (r < 0)
+ return r;
+
+ r = network_set_bridge(context, word, name);
+ if (r < 0)
+ return r;
+ }
+}
+
+static int parse_cmdline_bond(Context *context, const char *key, const char *value) {
+ const char *name, *slaves, *p;
+ NetDev *netdev;
+ int r;
+
+ if (proc_cmdline_value_missing(key, value))
+ return -EINVAL;
+
+ p = strchr(value, ':');
+ if (!p)
+ return -EINVAL;
+
+ name = strndupa(value, p - value);
+
+ netdev = netdev_get(context, name);
+ if (!netdev) {
+ r = netdev_new(context, "bond", name, &netdev);
+ if (r < 0)
+ return r;
+ }
+
+ value = p + 1;
+ p = strchr(value, ':');
+ if (!p)
+ slaves = value;
+ else
+ slaves = strndupa(value, p - value);
+
+ if (isempty(slaves))
+ return -EINVAL;
+
+ for (const char *q = slaves; ; ) {
+ _cleanup_free_ char *word = NULL;
+
+ r = extract_first_word(&q, &word, ",", 0);
+ if (r == 0)
+ break;
+ if (r < 0)
+ return r;
+
+ r = network_set_bond(context, word, name);
+ if (r < 0)
+ return r;
+ }
+
+ if (!p)
+ return 0;
+
+ value = p + 1;
+ p = strchr(value, ':');
+ if (!p)
+ /* TODO: set bonding options */
+ return 0;
+
+ return parse_mtu(AF_UNSPEC, p + 1, &netdev->mtu);
+}
+
+static int parse_cmdline_ifname(Context *context, const char *key, const char *value) {
+ struct ether_addr mac;
+ const char *name, *p;
+ int r;
+
+ /* ifname=<interface>:<MAC> */
+
+ if (proc_cmdline_value_missing(key, value))
+ return -EINVAL;
+
+ p = strchr(value, ':');
+ if (!p)
+ return -EINVAL;
+
+ name = strndupa(value, p - value);
+
+ r = ether_addr_from_string(p + 1, &mac);
+ if (r < 0)
+ return r;
+
+ return link_new(context, name, &mac, NULL);
+}
+
+int parse_cmdline_item(const char *key, const char *value, void *data) {
+ Context *context = data;
+
+ assert(key);
+ assert(data);
+
+ if (streq(key, "ip"))
+ return parse_cmdline_ip(context, key, value);
+ if (streq(key, "rd.route"))
+ return parse_cmdline_rd_route(context, key, value);
+ if (streq(key, "nameserver"))
+ return parse_cmdline_nameserver(context, key, value);
+ if (streq(key, "rd.peerdns"))
+ return parse_cmdline_rd_peerdns(context, key, value);
+ if (streq(key, "vlan"))
+ return parse_cmdline_vlan(context, key, value);
+ if (streq(key, "bridge"))
+ return parse_cmdline_bridge(context, key, value);
+ if (streq(key, "bond"))
+ return parse_cmdline_bond(context, key, value);
+ if (streq(key, "ifname"))
+ return parse_cmdline_ifname(context, key, value);
+
+ return 0;
+}
+
+int context_merge_networks(Context *context) {
+ Network *all, *network;
+ Route *route;
+ Iterator i;
+ int r;
+
+ assert(context);
+
+ /* Copy settings about the following options
+ rd.route=<net>/<netmask>:<gateway>[:<interface>]
+ nameserver=<IP> [nameserver=<IP> ...]
+ rd.peerdns=0 */
+
+ all = network_get(context, "");
+ if (!all)
+ return 0;
+
+ if (hashmap_size(context->networks_by_name) <= 1)
+ return 0;
+
+ HASHMAP_FOREACH(network, context->networks_by_name, i) {
+ if (network == all)
+ continue;
+
+ network->dhcp_use_dns = all->dhcp_use_dns;
+
+ r = strv_extend_strv(&network->dns, all->dns, false);
+ if (r < 0)
+ return r;
+
+ LIST_FOREACH(routes, route, all->routes) {
+ r = route_new(network, route->family, route->prefixlen, &route->dest, &route->gateway, NULL);
+ if (r < 0)
+ return r;
+ }
+ }
+
+ assert_se(hashmap_remove(context->networks_by_name, "") == all);
+ network_free(all);
+ return 0;
+}
+
+void context_clear(Context *context) {
+ if (!context)
+ return;
+
+ hashmap_free_with_destructor(context->networks_by_name, network_free);
+ hashmap_free_with_destructor(context->netdevs_by_name, netdev_free);
+ hashmap_free_with_destructor(context->links_by_name, link_free);
+}
+
+static int address_dump(Address *address, FILE *f) {
+ _cleanup_free_ char *addr = NULL, *peer = NULL;
+ int r;
+
+ r = in_addr_prefix_to_string(address->family, &address->address, address->prefixlen, &addr);
+ if (r < 0)
+ return r;
+
+ if (in_addr_is_null(address->family, &address->peer) == 0) {
+ r = in_addr_to_string(address->family, &address->peer, &peer);
+ if (r < 0)
+ return r;
+ }
+
+ fprintf(f,
+ "\n[Address]\n"
+ "Address=%s\n",
+ addr);
+
+ if (peer)
+ fprintf(f, "Peer=%s\n", peer);
+
+ return 0;
+}
+
+static int route_dump(Route *route, FILE *f) {
+ _cleanup_free_ char *dest = NULL, *gateway = NULL;
+ int r;
+
+ if (in_addr_is_null(route->family, &route->dest) == 0) {
+ r = in_addr_prefix_to_string(route->family, &route->dest, route->prefixlen, &dest);
+ if (r < 0)
+ return r;
+ }
+
+ r = in_addr_to_string(route->family, &route->gateway, &gateway);
+ if (r < 0)
+ return r;
+
+ fputs("\n[Route]\n", f);
+ if (dest)
+ fprintf(f, "Destination=%s\n", dest);
+ fprintf(f, "Gateway=%s\n", gateway);
+
+ return 0;
+}
+
+void network_dump(Network *network, FILE *f) {
+ char mac[ETHER_ADDR_TO_STRING_MAX];
+ Address *address;
+ Route *route;
+ const char *dhcp;
+ char **dns;
+
+ assert(network);
+ assert(f);
+
+ fprintf(f,
+ "[Match]\n"
+ "Name=%s\n",
+ isempty(network->ifname) ? "*" : network->ifname);
+
+ fputs("\n[Link]\n", f);
+
+ if (!ether_addr_is_null(&network->mac))
+ fprintf(f, "MACAddress=%s\n", ether_addr_to_string(&network->mac, mac));
+ if (network->mtu > 0)
+ fprintf(f, "MTUBytes=%" PRIu32 "\n", network->mtu);
+
+ fputs("\n[Network]\n", f);
+
+ dhcp = networkd_dhcp_type_to_string(network->dhcp_type);
+ if (dhcp)
+ fprintf(f, "DHCP=%s\n", dhcp);
+
+ if (!strv_isempty(network->dns))
+ STRV_FOREACH(dns, network->dns)
+ fprintf(f, "DNS=%s\n", *dns);
+
+ if (network->vlan)
+ fprintf(f, "VLAN=%s\n", network->vlan);
+
+ if (network->bridge)
+ fprintf(f, "Bridge=%s\n", network->bridge);
+
+ if (network->bond)
+ fprintf(f, "Bond=%s\n", network->bond);
+
+ fputs("\n[DHCP]\n", f);
+
+ if (!isempty(network->hostname))
+ fprintf(f, "Hostname=%s\n", network->hostname);
+
+ if (network->dhcp_use_dns >= 0)
+ fprintf(f, "UseDNS=%s\n", yes_no(network->dhcp_use_dns));
+
+ LIST_FOREACH(addresses, address, network->addresses)
+ (void) address_dump(address, f);
+
+ LIST_FOREACH(routes, route, network->routes)
+ (void) route_dump(route, f);
+}
+
+void netdev_dump(NetDev *netdev, FILE *f) {
+ assert(netdev);
+ assert(f);
+
+ fprintf(f,
+ "[NetDev]\n"
+ "Kind=%s\n"
+ "Name=%s\n",
+ netdev->kind,
+ netdev->ifname);
+
+ if (netdev->mtu > 0)
+ fprintf(f, "MTUBytes=%" PRIu32 "\n", netdev->mtu);
+}
+
+void link_dump(Link *link, FILE *f) {
+ char mac[ETHER_ADDR_TO_STRING_MAX];
+
+ assert(link);
+ assert(f);
+
+ fputs("[Match]\n", f);
+
+ if (!ether_addr_is_null(&link->mac))
+ fprintf(f, "MACAddress=%s\n", ether_addr_to_string(&link->mac, mac));
+
+ fprintf(f,
+ "\n[Link]\n"
+ "Name=%s\n",
+ link->ifname);
+}
+
+int network_format(Network *network, char **ret) {
+ _cleanup_free_ char *s = NULL;
+ size_t sz = 0;
+ int r;
+
+ assert(network);
+ assert(ret);
+
+ {
+ _cleanup_fclose_ FILE *f = NULL;
+
+ f = open_memstream_unlocked(&s, &sz);
+ if (!f)
+ return -ENOMEM;
+
+ network_dump(network, f);
+
+ /* Add terminating 0, so that the output buffer is a valid string. */
+ fputc('\0', f);
+
+ r = fflush_and_check(f);
+ }
+ if (r < 0)
+ return r;
+
+ assert(s);
+ *ret = TAKE_PTR(s);
+ assert(sz > 0);
+ return (int) sz - 1;
+}
+
+int netdev_format(NetDev *netdev, char **ret) {
+ _cleanup_free_ char *s = NULL;
+ size_t sz = 0;
+ int r;
+
+ assert(netdev);
+ assert(ret);
+
+ {
+ _cleanup_fclose_ FILE *f = NULL;
+
+ f = open_memstream_unlocked(&s, &sz);
+ if (!f)
+ return -ENOMEM;
+
+ netdev_dump(netdev, f);
+
+ /* Add terminating 0, so that the output buffer is a valid string. */
+ fputc('\0', f);
+
+ r = fflush_and_check(f);
+ }
+ if (r < 0)
+ return r;
+
+ assert(s);
+ *ret = TAKE_PTR(s);
+ assert(sz > 0);
+ return (int) sz - 1;
+}
+
+int link_format(Link *link, char **ret) {
+ _cleanup_free_ char *s = NULL;
+ size_t sz = 0;
+ int r;
+
+ assert(link);
+ assert(ret);
+
+ {
+ _cleanup_fclose_ FILE *f = NULL;
+
+ f = open_memstream_unlocked(&s, &sz);
+ if (!f)
+ return -ENOMEM;
+
+ link_dump(link, f);
+
+ /* Add terminating 0, so that the output buffer is a valid string. */
+ fputc('\0', f);
+
+ r = fflush_and_check(f);
+ }
+ if (r < 0)
+ return r;
+
+ assert(s);
+ *ret = TAKE_PTR(s);
+ assert(sz > 0);
+ return (int) sz - 1;
+}
projects / thirdparty / systemd.git / commitdiff
