X-Git-Url: http://git.archive.openwrt.org/?p=project%2Fodhcpd.git;a=blobdiff_plain;f=src%2Fconfig.c;h=979603c715658b29e65b3b7423006f2d7469fb88;hp=835db13a7e5e09763bfe87660d8ef2936135b7d0;hb=f8f4b8769fbbd4fd52d2854c912b5d298ff8f8fb;hpb=aa5659eb06a386ddf2bc80ad078891820f12c410 diff --git a/src/config.c b/src/config.c index 835db13..979603c 100644 --- a/src/config.c +++ b/src/config.c @@ -3,6 +3,10 @@ #include #include #include +#include +#include +#include +#include #include #include @@ -13,7 +17,9 @@ static struct blob_buf b; static int reload_pipe[2]; struct list_head leases = LIST_HEAD_INIT(leases); struct list_head interfaces = LIST_HEAD_INIT(interfaces); -struct config config = {false, NULL, NULL}; +struct config config = {.legacy = false, .main_dhcpv4 = false, + .dhcp_cb = NULL, .dhcp_statefile = NULL, + .log_level = LOG_INFO}; enum { IFACE_ATTR_INTERFACE, @@ -39,11 +45,19 @@ enum { IFACE_ATTR_RA_MANAGEMENT, IFACE_ATTR_RA_OFFLINK, IFACE_ATTR_RA_PREFERENCE, + IFACE_ATTR_RA_ADVROUTER, + IFACE_ATTR_RA_MININTERVAL, + IFACE_ATTR_RA_MAXINTERVAL, + IFACE_ATTR_RA_LIFETIME, + IFACE_ATTR_RA_USELEASETIME, + IFACE_ATTR_RA_REACHABLETIME, + IFACE_ATTR_RA_RETRANSTIME, + IFACE_ATTR_RA_HOPLIMIT, + IFACE_ATTR_RA_MTU, IFACE_ATTR_PD_MANAGER, IFACE_ATTR_PD_CER, IFACE_ATTR_NDPROXY_ROUTING, IFACE_ATTR_NDPROXY_SLAVE, - IFACE_ATTR_NDPROXY_STATIC, IFACE_ATTR_MAX }; @@ -73,16 +87,23 @@ static const struct blobmsg_policy iface_attrs[IFACE_ATTR_MAX] = { [IFACE_ATTR_RA_MANAGEMENT] = { .name = "ra_management", .type = BLOBMSG_TYPE_INT32 }, [IFACE_ATTR_RA_OFFLINK] = { .name = "ra_offlink", .type = BLOBMSG_TYPE_BOOL }, [IFACE_ATTR_RA_PREFERENCE] = { .name = "ra_preference", .type = BLOBMSG_TYPE_STRING }, + [IFACE_ATTR_RA_ADVROUTER] = { .name = "ra_advrouter", .type = BLOBMSG_TYPE_BOOL }, + [IFACE_ATTR_RA_MININTERVAL] = { .name = "ra_mininterval", .type = BLOBMSG_TYPE_INT32 }, + [IFACE_ATTR_RA_MAXINTERVAL] = { .name = "ra_maxinterval", .type = BLOBMSG_TYPE_INT32 }, + [IFACE_ATTR_RA_LIFETIME] = { .name = "ra_lifetime", .type = BLOBMSG_TYPE_INT32 }, + [IFACE_ATTR_RA_USELEASETIME] = { .name = "ra_useleasetime", .type = BLOBMSG_TYPE_BOOL }, + [IFACE_ATTR_RA_REACHABLETIME] = { .name = "ra_reachabletime", .type = BLOBMSG_TYPE_INT32 }, + [IFACE_ATTR_RA_RETRANSTIME] = { .name = "ra_retranstime", .type = BLOBMSG_TYPE_INT32 }, + [IFACE_ATTR_RA_HOPLIMIT] = { .name = "ra_hoplimit", .type = BLOBMSG_TYPE_INT32 }, + [IFACE_ATTR_RA_MTU] = { .name = "ra_mtu", .type = BLOBMSG_TYPE_INT32 }, [IFACE_ATTR_NDPROXY_ROUTING] = { .name = "ndproxy_routing", .type = BLOBMSG_TYPE_BOOL }, [IFACE_ATTR_NDPROXY_SLAVE] = { .name = "ndproxy_slave", .type = BLOBMSG_TYPE_BOOL }, - [IFACE_ATTR_NDPROXY_STATIC] = { .name = "ndproxy_static", .type = BLOBMSG_TYPE_ARRAY }, }; static const struct uci_blob_param_info iface_attr_info[IFACE_ATTR_MAX] = { [IFACE_ATTR_UPSTREAM] = { .type = BLOBMSG_TYPE_STRING }, [IFACE_ATTR_DNS] = { .type = BLOBMSG_TYPE_STRING }, [IFACE_ATTR_DOMAIN] = { .type = BLOBMSG_TYPE_STRING }, - [IFACE_ATTR_NDPROXY_STATIC] = { .type = BLOBMSG_TYPE_STRING }, }; const struct uci_blob_param_list interface_attr_list = { @@ -91,52 +112,85 @@ const struct uci_blob_param_list interface_attr_list = { .info = iface_attr_info, }; - enum { LEASE_ATTR_IP, LEASE_ATTR_MAC, LEASE_ATTR_DUID, LEASE_ATTR_HOSTID, + LEASE_ATTR_LEASETIME, LEASE_ATTR_NAME, LEASE_ATTR_MAX }; - static const struct blobmsg_policy lease_attrs[LEASE_ATTR_MAX] = { [LEASE_ATTR_IP] = { .name = "ip", .type = BLOBMSG_TYPE_STRING }, [LEASE_ATTR_MAC] = { .name = "mac", .type = BLOBMSG_TYPE_STRING }, [LEASE_ATTR_DUID] = { .name = "duid", .type = BLOBMSG_TYPE_STRING }, [LEASE_ATTR_HOSTID] = { .name = "hostid", .type = BLOBMSG_TYPE_STRING }, + [LEASE_ATTR_LEASETIME] = { .name = "leasetime", .type = BLOBMSG_TYPE_STRING }, [LEASE_ATTR_NAME] = { .name = "name", .type = BLOBMSG_TYPE_STRING }, }; - const struct uci_blob_param_list lease_attr_list = { .n_params = LEASE_ATTR_MAX, .params = lease_attrs, }; - enum { + ODHCPD_ATTR_LEGACY, ODHCPD_ATTR_MAINDHCP, ODHCPD_ATTR_LEASEFILE, ODHCPD_ATTR_LEASETRIGGER, + ODHCPD_ATTR_LOGLEVEL, ODHCPD_ATTR_MAX }; - static const struct blobmsg_policy odhcpd_attrs[LEASE_ATTR_MAX] = { + [ODHCPD_ATTR_LEGACY] = { .name = "legacy", .type = BLOBMSG_TYPE_BOOL }, [ODHCPD_ATTR_MAINDHCP] = { .name = "maindhcp", .type = BLOBMSG_TYPE_BOOL }, [ODHCPD_ATTR_LEASEFILE] = { .name = "leasefile", .type = BLOBMSG_TYPE_STRING }, [ODHCPD_ATTR_LEASETRIGGER] = { .name = "leasetrigger", .type = BLOBMSG_TYPE_STRING }, + [ODHCPD_ATTR_LOGLEVEL] = { .name = "loglevel", .type = BLOBMSG_TYPE_INT32 }, }; - const struct uci_blob_param_list odhcpd_attr_list = { .n_params = ODHCPD_ATTR_MAX, .params = odhcpd_attrs, }; +static int mkdir_p(char *dir, mode_t mask) +{ + char *l = strrchr(dir, '/'); + int ret; + + if (!l) + return 0; + + *l = '\0'; + + if (mkdir_p(dir, mask)) + return -1; + + *l = '/'; + + ret = mkdir(dir, mask); + if (ret && errno == EEXIST) + return 0; + + if (ret) + syslog(LOG_ERR, "mkdir(%s, %d) failed: %s\n", dir, mask, strerror(errno)); + + return ret; +} + +static void free_lease(struct lease *l) +{ + if (l->head.next) + list_del(&l->head); + + free(l->duid); + free(l); +} static struct interface* get_interface(const char *name) { @@ -147,21 +201,29 @@ static struct interface* get_interface(const char *name) return NULL; } +static void set_interface_defaults(struct interface *iface) +{ + iface->managed = 1; + iface->learn_routes = 1; + iface->dhcpv4_leasetime = 43200; + iface->ra_maxinterval = 600; + iface->ra_mininterval = iface->ra_maxinterval/3; + iface->ra_lifetime = -1; +} static void clean_interface(struct interface *iface) { free(iface->dns); free(iface->search); free(iface->upstream); - free(iface->static_ndp); free(iface->dhcpv4_router); free(iface->dhcpv4_dns); free(iface->dhcpv6_raw); free(iface->filter_class); memset(&iface->ra, 0, sizeof(*iface) - offsetof(struct interface, ra)); + set_interface_defaults(iface); } - static void close_interface(struct interface *iface) { if (iface->head.next) @@ -176,23 +238,20 @@ static void close_interface(struct interface *iface) free(iface); } - static int parse_mode(const char *mode) { - if (!strcmp(mode, "disabled")) { + if (!strcmp(mode, "disabled")) return RELAYD_DISABLED; - } else if (!strcmp(mode, "server")) { + else if (!strcmp(mode, "server")) return RELAYD_SERVER; - } else if (!strcmp(mode, "relay")) { + else if (!strcmp(mode, "relay")) return RELAYD_RELAY; - } else if (!strcmp(mode, "hybrid")) { + else if (!strcmp(mode, "hybrid")) return RELAYD_HYBRID; - } else { + else return -1; - } } - static void set_config(struct uci_section *s) { struct blob_attr *tb[ODHCPD_ATTR_MAX], *c; @@ -201,9 +260,12 @@ static void set_config(struct uci_section *s) uci_to_blob(&b, s, &odhcpd_attr_list); blobmsg_parse(odhcpd_attrs, ODHCPD_ATTR_MAX, tb, blob_data(b.head), blob_len(b.head)); - if ((c = tb[ODHCPD_ATTR_MAINDHCP])) + if ((c = tb[ODHCPD_ATTR_LEGACY])) config.legacy = blobmsg_get_bool(c); + if ((c = tb[ODHCPD_ATTR_MAINDHCP])) + config.main_dhcpv4 = blobmsg_get_bool(c); + if ((c = tb[ODHCPD_ATTR_LEASEFILE])) { free(config.dhcp_statefile); config.dhcp_statefile = strdup(blobmsg_get_string(c)); @@ -213,8 +275,44 @@ static void set_config(struct uci_section *s) free(config.dhcp_cb); config.dhcp_cb = strdup(blobmsg_get_string(c)); } + + if ((c = tb[ODHCPD_ATTR_LOGLEVEL])) { + int log_level = (blobmsg_get_u32(c) & LOG_PRIMASK); + + if (config.log_level != log_level) { + config.log_level = log_level; + setlogmask(LOG_UPTO(config.log_level)); + } + } } +static double parse_leasetime(struct blob_attr *c) { + char *val = blobmsg_get_string(c), *endptr = NULL; + double time = strcmp(val, "infinite") ? strtod(val, &endptr) : UINT32_MAX; + + if (time && endptr && endptr[0]) { + if (endptr[0] == 's') + time *= 1; + else if (endptr[0] == 'm') + time *= 60; + else if (endptr[0] == 'h') + time *= 3600; + else if (endptr[0] == 'd') + time *= 24 * 3600; + else if (endptr[0] == 'w') + time *= 7 * 24 * 3600; + else + goto err; + } + + if (time < 60) + time = 60; + + return time; + +err: + return -1; +} static int set_lease(struct uci_section *s) { @@ -265,18 +363,24 @@ static int set_lease(struct uci_section *s) goto err; } + if ((c = tb[LEASE_ATTR_LEASETIME])) { + double time = parse_leasetime(c); + if (time < 0) + goto err; + + lease->dhcpv4_leasetime = time; + } + list_add(&lease->head, &leases); return 0; err: - if (lease) { - free(lease->duid); - free(lease); - } + if (lease) + free_lease(lease); + return -1; } - int config_parse_interface(void *data, size_t len, const char *name, bool overwrite) { struct blob_attr *tb[IFACE_ATTR_MAX], *c; @@ -295,16 +399,14 @@ int config_parse_interface(void *data, size_t len, const char *name, bool overwr return -1; strncpy(iface->name, name, sizeof(iface->name) - 1); + + set_interface_defaults(iface); + list_add(&iface->head, &interfaces); overwrite = true; } const char *ifname = NULL; -#ifdef WITH_UBUS - if (overwrite || !iface->ifname[0]) - ifname = ubus_get_ifname(name); -#endif - if (overwrite) { if ((c = tb[IFACE_ATTR_IFNAME])) ifname = blobmsg_get_string(c); @@ -312,14 +414,19 @@ int config_parse_interface(void *data, size_t len, const char *name, bool overwr ifname = blobmsg_get_string(c); } +#ifdef WITH_UBUS + if (overwrite || !iface->ifname[0]) + ifname = ubus_get_ifname(name); +#endif + if (!iface->ifname[0] && !ifname) - return -1; + goto err; if (ifname) strncpy(iface->ifname, ifname, sizeof(iface->ifname) - 1); if ((iface->ifindex = if_nametoindex(iface->ifname)) <= 0) - return -1; + goto err; iface->inuse = true; @@ -330,31 +437,17 @@ int config_parse_interface(void *data, size_t len, const char *name, bool overwr iface->ignore = blobmsg_get_bool(c); if ((c = tb[IFACE_ATTR_LEASETIME])) { - char *val = blobmsg_get_string(c), *endptr; - double time = strtod(val, &endptr); - if (time && endptr[0]) { - if (endptr[0] == 's') - time *= 1; - else if (endptr[0] == 'm') - time *= 60; - else if (endptr[0] == 'h') - time *= 3600; - else if (endptr[0] == 'd') - time *= 24 * 3600; - else if (endptr[0] == 'w') - time *= 7 * 24 * 3600; - else - goto err; - } + double time = parse_leasetime(c); + if (time < 0) + goto err; - if (time >= 60) - iface->dhcpv4_leasetime = time; + iface->dhcpv4_leasetime = time; } if ((c = tb[IFACE_ATTR_START])) { iface->dhcpv4_start.s_addr = htonl(blobmsg_get_u32(c)); - if (config.legacy) + if (config.main_dhcpv4 && config.legacy) iface->dhcpv4 = RELAYD_SERVER; } @@ -370,7 +463,7 @@ int config_parse_interface(void *data, size_t len, const char *name, bool overwr unsigned rem; blobmsg_for_each_attr(cur, c, rem) { - if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, NULL)) + if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, false)) continue; iface->upstream = realloc(iface->upstream, @@ -392,8 +485,10 @@ int config_parse_interface(void *data, size_t len, const char *name, bool overwr } if ((c = tb[IFACE_ATTR_DHCPV4])) { - if ((mode = parse_mode(blobmsg_get_string(c))) >= 0) - iface->dhcpv4 = mode; + if ((mode = parse_mode(blobmsg_get_string(c))) >= 0) { + if (config.main_dhcpv4) + iface->dhcpv4 = mode; + } else goto err; } @@ -417,7 +512,7 @@ int config_parse_interface(void *data, size_t len, const char *name, bool overwr unsigned rem; blobmsg_for_each_attr(cur, c, rem) { - if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, NULL)) + if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, false)) continue; struct in_addr addr4; @@ -428,9 +523,8 @@ int config_parse_interface(void *data, size_t len, const char *name, bool overwr goto err; iface->dhcpv4_router[iface->dhcpv4_router_cnt - 1] = addr4; - } else { + } else goto err; - } } } @@ -440,7 +534,7 @@ int config_parse_interface(void *data, size_t len, const char *name, bool overwr iface->always_rewrite_dns = true; blobmsg_for_each_attr(cur, c, rem) { - if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, NULL)) + if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, false)) continue; struct in_addr addr4; @@ -459,9 +553,8 @@ int config_parse_interface(void *data, size_t len, const char *name, bool overwr goto err; iface->dns[iface->dns_cnt - 1] = addr6; - } else { + } else goto err; - } } } @@ -470,7 +563,7 @@ int config_parse_interface(void *data, size_t len, const char *name, bool overwr unsigned rem; blobmsg_for_each_attr(cur, c, rem) { - if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, NULL)) + if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, false)) continue; uint8_t buf[256]; @@ -480,7 +573,6 @@ int config_parse_interface(void *data, size_t len, const char *name, bool overwr domain[domainlen - 1] = 0; int len = dn_comp(domain, buf, sizeof(buf), NULL, NULL); - free(domain); if (len <= 0) goto err; @@ -509,12 +601,49 @@ int config_parse_interface(void *data, size_t len, const char *name, bool overwr if ((c = tb[IFACE_ATTR_RA_MANAGEMENT])) iface->managed = blobmsg_get_u32(c); - else if (overwrite) - iface->managed = 1; + + if ((c = tb[IFACE_ATTR_RA_REACHABLETIME])) { + iface->ra_reachabletime = blobmsg_get_u32(c); + if (iface->ra_reachabletime > 3600000) + goto err; + } + + if ((c = tb[IFACE_ATTR_RA_RETRANSTIME])) { + iface->ra_retranstime = blobmsg_get_u32(c); + if (iface->ra_retranstime > 60000) + goto err; + } + + if ((c = tb[IFACE_ATTR_RA_HOPLIMIT])) { + iface->ra_hoplimit = blobmsg_get_u32(c); + if (iface->ra_hoplimit > 255) + goto err; + } + + if ((c = tb[IFACE_ATTR_RA_MTU])) { + iface->ra_mtu = blobmsg_get_u32(c); + if (iface->ra_mtu < 1280) + goto err; + } if ((c = tb[IFACE_ATTR_RA_OFFLINK])) iface->ra_not_onlink = blobmsg_get_bool(c); + if ((c = tb[IFACE_ATTR_RA_ADVROUTER])) + iface->ra_advrouter = blobmsg_get_bool(c); + + if ((c = tb[IFACE_ATTR_RA_MININTERVAL])) + iface->ra_mininterval = blobmsg_get_u32(c); + + if ((c = tb[IFACE_ATTR_RA_MAXINTERVAL])) + iface->ra_maxinterval = blobmsg_get_u32(c); + + if ((c = tb[IFACE_ATTR_RA_LIFETIME])) + iface->ra_lifetime = blobmsg_get_u32(c); + + if ((c = tb[IFACE_ATTR_RA_USELEASETIME])) + iface->ra_useleasetime = blobmsg_get_bool(c); + if ((c = tb[IFACE_ATTR_RA_PREFERENCE])) { const char *prio = blobmsg_get_string(c); @@ -538,33 +667,10 @@ int config_parse_interface(void *data, size_t len, const char *name, bool overwr if ((c = tb[IFACE_ATTR_NDPROXY_ROUTING])) iface->learn_routes = blobmsg_get_bool(c); - else if (overwrite) - iface->learn_routes = true; if ((c = tb[IFACE_ATTR_NDPROXY_SLAVE])) iface->external = blobmsg_get_bool(c); - if ((c = tb[IFACE_ATTR_NDPROXY_STATIC])) { - struct blob_attr *cur; - unsigned rem; - - blobmsg_for_each_attr(cur, c, rem) { - if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, NULL)) - continue; - - int len = blobmsg_data_len(cur); - iface->static_ndp = realloc(iface->static_ndp, iface->static_ndp_len + len); - if (!iface->static_ndp) - goto err; - - if (iface->static_ndp_len) - iface->static_ndp[iface->static_ndp_len - 1] = ' '; - - memcpy(&iface->static_ndp[iface->static_ndp_len], blobmsg_get_string(cur), len); - iface->static_ndp_len += len; - } - } - return 0; err: @@ -576,19 +682,16 @@ static int set_interface(struct uci_section *s) { blob_buf_init(&b, 0); uci_to_blob(&b, s, &interface_attr_list); + return config_parse_interface(blob_data(b.head), blob_len(b.head), s->e.name, true); } - void odhcpd_reload(void) { struct uci_context *uci = uci_alloc_context(); - while (!list_empty(&leases)) { - struct lease *l = list_first_entry(&leases, struct lease, head); - list_del(&l->head); - free(l->duid); - free(l); - } + + while (!list_empty(&leases)) + free_lease(list_first_entry(&leases, struct lease, head)); struct interface *master = NULL, *i, *n; @@ -616,6 +719,12 @@ void odhcpd_reload(void) } } + if (config.dhcp_statefile) { + char *path = strdup(config.dhcp_statefile); + + mkdir_p(dirname(path), 0755); + free(path); + } #ifdef WITH_UBUS ubus_apply_network(); @@ -623,7 +732,7 @@ void odhcpd_reload(void) bool any_dhcpv6_slave = false, any_ra_slave = false, any_ndp_slave = false; - // Test for + /* Test for */ list_for_each_entry(i, &interfaces, head) { if (i->master) continue; @@ -638,7 +747,7 @@ void odhcpd_reload(void) any_ndp_slave = true; } - // Evaluate hybrid mode for master + /* Evaluate hybrid mode for master */ list_for_each_entry(i, &interfaces, head) { if (!i->master) continue; @@ -674,7 +783,7 @@ void odhcpd_reload(void) list_for_each_entry_safe(i, n, &interfaces, head) { if (i->inuse) { - // Resolve hybrid mode + /* Resolve hybrid mode */ if (i->dhcpv6 == RELAYD_HYBRID) i->dhcpv6 = (master && master->dhcpv6 == RELAYD_RELAY) ? RELAYD_RELAY : RELAYD_SERVER; @@ -687,35 +796,34 @@ void odhcpd_reload(void) i->ndp = (master && master->ndp == RELAYD_RELAY) ? RELAYD_RELAY : RELAYD_DISABLED; - setup_router_interface(i, true); - setup_dhcpv6_interface(i, true); - setup_ndp_interface(i, true); - setup_dhcpv4_interface(i, true); - } else { + setup_router_interface(i, !i->ignore || i->ra != RELAYD_DISABLED); + setup_dhcpv6_interface(i, !i->ignore || i->dhcpv6 != RELAYD_DISABLED); + setup_ndp_interface(i, !i->ignore || i->ndp != RELAYD_DISABLED); + setup_dhcpv4_interface(i, !i->ignore || i->dhcpv4 != RELAYD_DISABLED); + } else close_interface(i); - } } + ndp_handle_addr6_dump(); uci_unload(uci, dhcp); uci_free_context(uci); } - static void handle_signal(int signal) { char b[1] = {0}; - if (signal == SIGHUP) - write(reload_pipe[1], b, sizeof(b)); - else + + if (signal == SIGHUP) { + if (write(reload_pipe[1], b, sizeof(b)) < 0) {} + } else uloop_end(); } - - static void reload_cb(struct uloop_fd *u, _unused unsigned int events) { char b[512]; - read(u->fd, b, sizeof(b)); + if (read(u->fd, b, sizeof(b)) < 0) {} + odhcpd_reload(); } @@ -723,7 +831,8 @@ static struct uloop_fd reload_fd = { .cb = reload_cb }; void odhcpd_run(void) { - pipe2(reload_pipe, O_NONBLOCK | O_CLOEXEC); + if (pipe2(reload_pipe, O_NONBLOCK | O_CLOEXEC) < 0) {} + reload_fd.fd = reload_pipe[0]; uloop_fd_add(&reload_fd, ULOOP_READ); @@ -738,5 +847,8 @@ void odhcpd_run(void) odhcpd_reload(); uloop_run(); + + while (!list_empty(&interfaces)) + close_interface(list_first_entry(&interfaces, struct interface, head)); }