diff options
Diffstat (limited to 'src/dhcp/nm-dhcp-utils.c')
| -rw-r--r-- | src/dhcp/nm-dhcp-utils.c | 317 |
1 files changed, 181 insertions, 136 deletions
diff --git a/src/dhcp/nm-dhcp-utils.c b/src/dhcp/nm-dhcp-utils.c index bf10e2b5c4..8d7fd89add 100644 --- a/src/dhcp/nm-dhcp-utils.c +++ b/src/dhcp/nm-dhcp-utils.c @@ -11,6 +11,7 @@ #include "nm-glib-aux/nm-dedup-multi.h" #include "nm-dhcp-utils.h" +#include "nm-l3-config-data.h" #include "nm-utils.h" #include "nm-config.h" #include "NetworkManagerUtils.h" @@ -21,22 +22,20 @@ /*****************************************************************************/ static gboolean -ip4_process_dhcpcd_rfc3442_routes(const char * iface, - const char * str, - guint32 route_table, - guint32 route_metric, - NMIP4Config *ip4_config, - guint32 * gwaddr) +ip4_process_dhcpcd_rfc3442_routes(const char * iface, + const char * str, + NML3ConfigData *l3cd, + guint32 * gwaddr) { - gs_free const char **routes = NULL; - const char ** r; - gboolean have_routes = FALSE; + gs_strfreev char **routes = NULL; + gboolean have_routes = FALSE; + char ** r; - routes = nm_utils_strsplit_set(str, " "); - if (!routes) + routes = g_strsplit(str, " ", 0); + if (g_strv_length(routes) == 0) return FALSE; - if ((NM_PTRARRAY_LEN(routes) % 2) != 0) { + if ((g_strv_length(routes) % 2) != 0) { _LOG2W(LOGD_DHCP4, iface, " classless static routes provided, but invalid"); return FALSE; } @@ -86,14 +85,17 @@ ip4_process_dhcpcd_rfc3442_routes(const char * iface, *r, rt_cidr, *(r + 1)); - memset(&route, 0, sizeof(route)); - route.network = nm_utils_ip4_address_clear_host_address(rt_addr, rt_cidr); - route.plen = rt_cidr; - route.gateway = rt_route; - route.rt_source = NM_IP_CONFIG_SOURCE_DHCP; - route.metric = route_metric; - route.table_coerced = nm_platform_route_table_coerce(route_table); - nm_ip4_config_add_route(ip4_config, &route, NULL); + + route = (NMPlatformIP4Route){ + .network = nm_utils_ip4_address_clear_host_address(rt_addr, rt_cidr), + .plen = rt_cidr, + .gateway = rt_route, + .rt_source = NM_IP_CONFIG_SOURCE_DHCP, + .metric_any = TRUE, + .table_any = TRUE, + }; + + nm_l3_config_data_add_route_4(l3cd, &route); } } @@ -150,12 +152,10 @@ process_dhclient_rfc3442_route(const char *const **p_octets, NMPlatformIP4Route } static gboolean -ip4_process_dhclient_rfc3442_routes(const char * iface, - const char * str, - guint32 route_table, - guint32 route_metric, - NMIP4Config *ip4_config, - guint32 * gwaddr) +ip4_process_dhclient_rfc3442_routes(const char * iface, + const char * str, + NML3ConfigData *l3cd, + guint32 * gwaddr) { gs_free const char **octets = NULL; const char *const * o; @@ -186,9 +186,12 @@ ip4_process_dhclient_rfc3442_routes(const char * iface, /* normal route */ route.rt_source = NM_IP_CONFIG_SOURCE_DHCP; - route.metric = route_metric; - route.table_coerced = nm_platform_route_table_coerce(route_table); - nm_ip4_config_add_route(ip4_config, &route, NULL); + route.table_any = TRUE; + route.table_coerced = 0; + route.metric_any = TRUE; + route.metric = 0; + + nm_l3_config_data_add_route_4(l3cd, &route); _LOG2I(LOGD_DHCP4, iface, @@ -203,17 +206,15 @@ ip4_process_dhclient_rfc3442_routes(const char * iface, } static gboolean -ip4_process_classless_routes(const char * iface, - GHashTable * options, - guint32 route_table, - guint32 route_metric, - NMIP4Config *ip4_config, - guint32 * gwaddr) +ip4_process_classless_routes(const char * iface, + GHashTable * options, + NML3ConfigData *l3cd, + guint32 * gwaddr) { const char *str, *p; g_return_val_if_fail(options != NULL, FALSE); - g_return_val_if_fail(ip4_config != NULL, FALSE); + g_return_val_if_fail(l3cd != NULL, FALSE); *gwaddr = 0; @@ -262,42 +263,25 @@ ip4_process_classless_routes(const char * iface, if (strchr(str, '/')) { /* dhcpcd format */ - return ip4_process_dhcpcd_rfc3442_routes(iface, - str, - route_table, - route_metric, - ip4_config, - gwaddr); + return ip4_process_dhcpcd_rfc3442_routes(iface, str, l3cd, gwaddr); } - return ip4_process_dhclient_rfc3442_routes(iface, - str, - route_table, - route_metric, - ip4_config, - gwaddr); + return ip4_process_dhclient_rfc3442_routes(iface, str, l3cd, gwaddr); } static void -process_classful_routes(const char * iface, - GHashTable * options, - guint32 route_table, - guint32 route_metric, - NMIP4Config *ip4_config) +process_classful_routes(const char *iface, GHashTable *options, NML3ConfigData *l3cd) { - gs_free const char **searches = NULL; - const char ** s; - const char * str; + gs_strfreev char **searches = NULL; + const char * str; + char ** s; str = g_hash_table_lookup(options, "static_routes"); if (!str) return; - searches = nm_utils_strsplit_set(str, " "); - if (!searches) - return; - - if ((NM_PTRARRAY_LEN(searches) % 2) != 0) { + searches = g_strsplit(str, " ", 0); + if ((g_strv_length(searches) % 2)) { _LOG2I(LOGD_DHCP, iface, " static routes provided, but invalid"); return; } @@ -317,8 +301,10 @@ process_classful_routes(const char * iface, // FIXME: ensure the IP address and route are sane - memset(&route, 0, sizeof(route)); - route.network = rt_addr; + route = (NMPlatformIP4Route){ + .network = rt_addr, + }; + /* RFC 2132, updated by RFC 3442: * The Static Routes option (option 33) does not provide a subnet mask * for each route - it is assumed that the subnet mask is implicit in @@ -330,12 +316,15 @@ process_classful_routes(const char * iface, } route.gateway = rt_route; route.rt_source = NM_IP_CONFIG_SOURCE_DHCP; - route.metric = route_metric; - route.table_coerced = nm_platform_route_table_coerce(route_table); + route.table_any = TRUE; + route.table_coerced = 0; + route.metric_any = TRUE; + route.metric = 0; route.network = nm_utils_ip4_address_clear_host_address(route.network, route.plen); - nm_ip4_config_add_route(ip4_config, &route, NULL); + nm_l3_config_data_add_route_4(l3cd, &route); + _LOG2I(LOGD_DHCP, iface, " static route %s", @@ -344,7 +333,7 @@ process_classful_routes(const char * iface, } static void -process_domain_search(const char *iface, const char *str, GFunc add_func, gpointer user_data) +process_domain_search(int addr_family, const char *iface, const char *str, NML3ConfigData *l3cd) { gs_free const char **searches = NULL; gs_free char * unescaped = NULL; @@ -353,7 +342,7 @@ process_domain_search(const char *iface, const char *str, GFunc add_func, gpoint int i; g_return_if_fail(str != NULL); - g_return_if_fail(add_func != NULL); + nm_assert(l3cd); unescaped = g_strdup(str); @@ -376,46 +365,44 @@ process_domain_search(const char *iface, const char *str, GFunc add_func, gpoint searches = nm_utils_strsplit_set(unescaped, " "); for (s = searches; searches && *s; s++) { _LOG2I(LOGD_DHCP, iface, " domain search '%s'", *s); - add_func((gpointer) *s, user_data); + nm_l3_config_data_add_search(l3cd, addr_family, *s); } } -static void -ip4_add_domain_search(gpointer data, gpointer user_data) -{ - nm_ip4_config_add_search(NM_IP4_CONFIG(user_data), (const char *) data); -} - -NMIP4Config * +NML3ConfigData * nm_dhcp_utils_ip4_config_from_options(NMDedupMultiIndex *multi_idx, int ifindex, const char * iface, - GHashTable * options, - guint32 route_table, - guint32 route_metric) + GHashTable * options) { - gs_unref_object NMIP4Config *ip4_config = NULL; - guint32 tmp_addr; - in_addr_t addr; - NMPlatformIP4Address address; - char * str = NULL; - gboolean gateway_has = FALSE; - guint32 gateway = 0; - guint8 plen = 0; - char sbuf[NM_UTILS_INET_ADDRSTRLEN]; + nm_auto_unref_l3cd_init NML3ConfigData *l3cd = NULL; + guint32 tmp_addr; + in_addr_t addr; + NMPlatformIP4Address address; + char * str = NULL; + gboolean gateway_has = FALSE; + guint32 gateway = 0; + guint8 plen = 0; + char sbuf[NM_UTILS_INET_ADDRSTRLEN]; + guint32 now; g_return_val_if_fail(options != NULL, NULL); - ip4_config = nm_ip4_config_new(multi_idx, ifindex); - memset(&address, 0, sizeof(address)); - address.timestamp = nm_utils_get_monotonic_timestamp_sec(); + l3cd = nm_l3_config_data_new(multi_idx, ifindex); + nm_l3_config_data_set_source(l3cd, NM_IP_CONFIG_SOURCE_DHCP); + + now = nm_utils_get_monotonic_timestamp_sec(); + + address = (NMPlatformIP4Address){ + .timestamp = now, + }; str = g_hash_table_lookup(options, "ip_address"); - if (str && (inet_pton(AF_INET, str, &addr) > 0)) - _LOG2I(LOGD_DHCP4, iface, " address %s", str); - else + if (!str || !nm_utils_parse_inaddr_bin(AF_INET, str, NULL, &addr)) return NULL; + _LOG2I(LOGD_DHCP4, iface, " address %s", str); + str = g_hash_table_lookup(options, "subnet_mask"); if (str && (inet_pton(AF_INET, str, &tmp_addr) > 0)) { plen = nm_utils_ip4_netmask_to_prefix(tmp_addr); @@ -430,13 +417,8 @@ nm_dhcp_utils_ip4_config_from_options(NMDedupMultiIndex *multi_idx, /* Routes: if the server returns classless static routes, we MUST ignore * the 'static_routes' option. */ - if (!ip4_process_classless_routes(iface, - options, - route_table, - route_metric, - ip4_config, - &gateway)) - process_classful_routes(iface, options, route_table, route_metric, ip4_config); + if (!ip4_process_classless_routes(iface, options, l3cd, &gateway)) + process_classful_routes(iface, options, l3cd); if (gateway) { _LOG2I(LOGD_DHCP4, iface, " gateway %s", _nm_utils_inet4_ntop(gateway, sbuf)); @@ -447,10 +429,10 @@ nm_dhcp_utils_ip4_config_from_options(NMDedupMultiIndex *multi_idx, */ str = g_hash_table_lookup(options, "routers"); if (str) { - gs_free const char **routers = nm_utils_strsplit_set(str, " "); - const char ** s; + char **routers = g_strsplit(str, " ", 0); + char **s; - for (s = routers; routers && *s; s++) { + for (s = routers; *s; s++) { /* FIXME: how to handle multiple routers? */ if (inet_pton(AF_INET, *s, &gateway) > 0) { _LOG2I(LOGD_DHCP4, iface, " gateway %s", *s); @@ -459,6 +441,7 @@ nm_dhcp_utils_ip4_config_from_options(NMDedupMultiIndex *multi_idx, } else _LOG2W(LOGD_DHCP4, iface, "ignoring invalid gateway '%s'", *s); } + g_strfreev(routers); } } @@ -466,11 +449,13 @@ nm_dhcp_utils_ip4_config_from_options(NMDedupMultiIndex *multi_idx, const NMPlatformIP4Route r = { .rt_source = NM_IP_CONFIG_SOURCE_DHCP, .gateway = gateway, - .table_coerced = nm_platform_route_table_coerce(route_table), - .metric = route_metric, + .table_any = TRUE, + .table_coerced = 0, + .metric_any = TRUE, + .metric = 0, }; - nm_ip4_config_add_route(ip4_config, &r, NULL); + nm_l3_config_data_add_route_4(l3cd, &r); } str = g_hash_table_lookup(options, "dhcp_lease_time"); @@ -480,7 +465,8 @@ nm_dhcp_utils_ip4_config_from_options(NMDedupMultiIndex *multi_idx, } address.addr_source = NM_IP_CONFIG_SOURCE_DHCP; - nm_ip4_config_add_address(ip4_config, &address); + + nm_l3_config_data_add_address_4(l3cd, &address); str = g_hash_table_lookup(options, "host_name"); if (str) @@ -494,7 +480,7 @@ nm_dhcp_utils_ip4_config_from_options(NMDedupMultiIndex *multi_idx, for (s = dns; dns && *s; s++) { if (inet_pton(AF_INET, *s, &tmp_addr) > 0) { if (tmp_addr) { - nm_ip4_config_add_nameserver(ip4_config, tmp_addr); + nm_l3_config_data_add_nameserver(l3cd, AF_INET, &tmp_addr); _LOG2I(LOGD_DHCP4, iface, " nameserver '%s'", *s); } } else @@ -509,13 +495,13 @@ nm_dhcp_utils_ip4_config_from_options(NMDedupMultiIndex *multi_idx, for (s = domains; domains && *s; s++) { _LOG2I(LOGD_DHCP4, iface, " domain name '%s'", *s); - nm_ip4_config_add_domain(ip4_config, *s); + nm_l3_config_data_add_domain(l3cd, AF_INET, *s); } } str = g_hash_table_lookup(options, "domain_search"); if (str) - process_domain_search(iface, str, ip4_add_domain_search, ip4_config); + process_domain_search(AF_INET, iface, str, l3cd); str = g_hash_table_lookup(options, "netbios_name_servers"); if (str) { @@ -525,7 +511,7 @@ nm_dhcp_utils_ip4_config_from_options(NMDedupMultiIndex *multi_idx, for (s = nbns; nbns && *s; s++) { if (inet_pton(AF_INET, *s, &tmp_addr) > 0) { if (tmp_addr) { - nm_ip4_config_add_wins(ip4_config, tmp_addr); + nm_l3_config_data_add_wins(l3cd, tmp_addr); _LOG2I(LOGD_DHCP4, iface, " wins '%s'", *s); } } else @@ -543,13 +529,13 @@ nm_dhcp_utils_ip4_config_from_options(NMDedupMultiIndex *multi_idx, return NULL; if (int_mtu > 576) - nm_ip4_config_set_mtu(ip4_config, int_mtu, NM_IP_CONFIG_SOURCE_DHCP); + nm_l3_config_data_set_mtu(l3cd, int_mtu); } str = g_hash_table_lookup(options, "nis_domain"); if (str) { _LOG2I(LOGD_DHCP4, iface, " NIS domain '%s'", str); - nm_ip4_config_set_nis_domain(ip4_config, str); + nm_l3_config_data_add_domain(l3cd, AF_INET, str); } str = g_hash_table_lookup(options, "nis_servers"); @@ -560,7 +546,7 @@ nm_dhcp_utils_ip4_config_from_options(NMDedupMultiIndex *multi_idx, for (s = nis; nis && *s; s++) { if (inet_pton(AF_INET, *s, &tmp_addr) > 0) { if (tmp_addr) { - nm_ip4_config_add_nis_server(ip4_config, tmp_addr); + nm_l3_config_data_add_nis_server(l3cd, tmp_addr); _LOG2I(LOGD_DHCP4, iface, " nis '%s'", *s); } } else @@ -569,19 +555,14 @@ nm_dhcp_utils_ip4_config_from_options(NMDedupMultiIndex *multi_idx, } str = g_hash_table_lookup(options, "vendor_encapsulated_options"); - nm_ip4_config_set_metered(ip4_config, str && strstr(str, "ANDROID_METERED")); + if (str && strstr(str, "ANDROID_METERED")) + nm_l3_config_data_set_metered(l3cd, TRUE); - return g_steal_pointer(&ip4_config); + return g_steal_pointer(&l3cd); } /*****************************************************************************/ -static void -ip6_add_domain_search(gpointer data, gpointer user_data) -{ - nm_ip6_config_add_search(NM_IP6_CONFIG(user_data), (const char *) data); -} - NMPlatformIP6Address nm_dhcp_utils_ip6_prefix_from_options(GHashTable *options) { @@ -632,25 +613,30 @@ nm_dhcp_utils_ip6_prefix_from_options(GHashTable *options) return address; } -NMIP6Config * +NML3ConfigData * nm_dhcp_utils_ip6_config_from_options(NMDedupMultiIndex *multi_idx, int ifindex, const char * iface, GHashTable * options, gboolean info_only) { - gs_unref_object NMIP6Config *ip6_config = NULL; - struct in6_addr tmp_addr; - NMPlatformIP6Address address; - char * str = NULL; + nm_auto_unref_l3cd_init NML3ConfigData *l3cd = NULL; + struct in6_addr tmp_addr; + NMPlatformIP6Address address; + char * str = NULL; + guint32 now; g_return_val_if_fail(options != NULL, NULL); - memset(&address, 0, sizeof(address)); - address.plen = 128; - address.timestamp = nm_utils_get_monotonic_timestamp_sec(); + now = nm_utils_get_monotonic_timestamp_sec(); - ip6_config = nm_ip6_config_new(multi_idx, ifindex); + address = (NMPlatformIP6Address){ + .plen = 128, + .timestamp = now, + }; + + l3cd = nm_l3_config_data_new(multi_idx, ifindex); + nm_l3_config_data_set_source(l3cd, NM_IP_CONFIG_SOURCE_DHCP); str = g_hash_table_lookup(options, "max_life"); if (str) { @@ -673,7 +659,7 @@ nm_dhcp_utils_ip6_config_from_options(NMDedupMultiIndex *multi_idx, address.address = tmp_addr; address.addr_source = NM_IP_CONFIG_SOURCE_DHCP; - nm_ip6_config_add_address(ip6_config, &address); + nm_l3_config_data_add_address_6(l3cd, &address); _LOG2I(LOGD_DHCP6, iface, " address %s", str); } else if (info_only == FALSE) { /* No address in Managed mode is a hard error */ @@ -692,7 +678,7 @@ nm_dhcp_utils_ip6_config_from_options(NMDedupMultiIndex *multi_idx, for (s = dns; dns && *s; s++) { if (inet_pton(AF_INET6, *s, &tmp_addr) > 0) { if (!IN6_IS_ADDR_UNSPECIFIED(&tmp_addr)) { - nm_ip6_config_add_nameserver(ip6_config, &tmp_addr); + nm_l3_config_data_add_nameserver(l3cd, AF_INET6, &tmp_addr); _LOG2I(LOGD_DHCP6, iface, " nameserver '%s'", *s); } } else @@ -702,9 +688,9 @@ nm_dhcp_utils_ip6_config_from_options(NMDedupMultiIndex *multi_idx, str = g_hash_table_lookup(options, "dhcp6_domain_search"); if (str) - process_domain_search(iface, str, ip6_add_domain_search, ip6_config); + process_domain_search(AF_INET6, iface, str, l3cd); - return g_steal_pointer(&ip6_config); + return g_steal_pointer(&l3cd); } char * @@ -834,3 +820,62 @@ nm_dhcp_utils_get_dhcp6_event_id(GHashTable *lease) return g_strdup_printf("%s|%s", iaid, start); } + +gboolean +nm_dhcp_utils_merge_new_dhcp6_lease(const NML3ConfigData * l3cd_old, + const NML3ConfigData * l3cd_new, + const NML3ConfigData **out_l3cd_merged) +{ + nm_auto_unref_l3cd_init NML3ConfigData *l3cd_merged = NULL; + const NMPlatformIP6Address * addr; + NMDhcpLease * lease_old; + NMDhcpLease * lease_new; + NMDedupMultiIter iter; + const char * start; + const char * iaid; + + nm_assert(out_l3cd_merged); + nm_assert(!*out_l3cd_merged); + + if (!l3cd_old) + return FALSE; + if (!l3cd_new) + return FALSE; + + lease_new = nm_l3_config_data_get_dhcp_lease(l3cd_new, AF_INET6); + if (!lease_new) + return FALSE; + + lease_old = nm_l3_config_data_get_dhcp_lease(l3cd_old, AF_INET6); + if (!lease_old) + return FALSE; + + start = nm_dhcp_lease_lookup_option(lease_new, "life_starts"); + if (!start) + return FALSE; + iaid = nm_dhcp_lease_lookup_option(lease_new, "iaid"); + if (!iaid) + return FALSE; + + if (!nm_streq0(start, nm_dhcp_lease_lookup_option(lease_old, "life_starts"))) + return FALSE; + if (!nm_streq0(iaid, nm_dhcp_lease_lookup_option(lease_old, "iaid"))) + return FALSE; + + /* If the server sends multiple IPv6 addresses, we receive a state + * changed event for each of them. Use the event ID to merge IPv6 + * addresses from the same transaction into a single configuration. + **/ + + l3cd_merged = nm_l3_config_data_new_clone(l3cd_old, -1); + + nm_l3_config_data_iter_ip6_address_for_each (&iter, l3cd_new, &addr) + nm_l3_config_data_add_address_6(l3cd_merged, addr); + + /* Note that we keep the original NMDhcpLease. All we take from the new lease are the + * addresses. Maybe this is not right?? */ + nm_l3_config_data_set_dhcp_lease(l3cd_merged, AF_INET6, lease_old); + + *out_l3cd_merged = nm_l3_config_data_ref_and_seal(g_steal_pointer(&l3cd_merged)); + return TRUE; +} |