6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * CDDL HEADER START
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * The contents of this file are subject to the terms of the
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * Common Development and Distribution License (the "License").
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * You may not use this file except in compliance with the License.
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * or http://www.opensolaris.org/os/licensing.
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * See the License for the specific language governing permissions
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * and limitations under the License.
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * When distributing Covered Code, include this CDDL HEADER in each
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * If applicable, add the following below this CDDL HEADER, with the
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * fields enclosed by brackets "[]" replaced with your own identifying
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * information: Portions Copyright [yyyy] [name of copyright owner]
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * CDDL HEADER END
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * ncu_ip.c - contains routines that are IP interface-specific for NCUs.
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey#define STATELESS_RUNNING (IFF_RUNNING | IFF_UP | IFF_ADDRCONF)
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey#define DHCP_RUNNING (IFF_RUNNING | IFF_UP | IFF_DHCPRUNNING)
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskeystatic void nwamd_dhcp(const char *, ipadm_addrobj_t, dhcp_ipc_type_t);
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskeystatic void nwamd_down_interface(const char *, ipadm_addr_type_t, const char *);
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskeystatic boolean_t stateless_running(const nwamd_ncu_t *);
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * Given a sockaddr representation of an IPv4 or IPv6 address returns the
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * string representation. Note that 'sockaddr' should point at the correct
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * sockaddr structure for the address family (sockaddr_in for AF_INET or
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * sockaddr_in6 for AF_INET6) or alternatively at a sockaddr_storage
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskeystatic const char *
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskeynwamd_sockaddr2str(const struct sockaddr *addr, char *str, size_t len)
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey /* LINTED E_BAD_PTR_CAST_ALIGN */
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey straddr = inet_ntop(AF_INET, (void *)&sin->sin_addr, str, len);
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey /* LINTED E_BAD_PTR_CAST_ALIGN */
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey straddr = inet_ntop(AF_INET6, (void *)&sin6->sin6_addr, str,
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskeynwamd_propogate_link_up_down_to_ip(const char *linkname, boolean_t up)
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey nwamd_object_t ip_ncu = nwamd_ncu_object_find(NWAM_NCU_TYPE_INTERFACE,
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey nlog(LOG_DEBUG, "nwamd_propogate_link_up_down_to_ip: no IP NCU "
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey "for link %s, cannot propogate %s event", linkname,
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey "nwamd_propogate_link_up_down_to_ip: will not "
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey "propogate link %s event as IP NCU %s is being "
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey "nwamd_propogate_link_up_down_to_ip: propogating "
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey "link %s event to interface %s",
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey nwamd_object_set_state(NWAM_OBJECT_TYPE_NCU,
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey "nwamd_propogate_link_up_down_to_ip: not propogating "
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey "link %s event to interface %s, IP NCU is disabled",
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * Returns the value associated with the given symbol for the given
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * interface. The interface may be NULL, in which case the primary
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * interface is used.
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * This function substitutes the need to call dhcpinfo(1), thus it is
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * very similar to the implementation of dhcpinfo(1).
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * When multiple values need to be returned (e.g., nameservers), they
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * are separated by a space ' '.
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskeynwamd_get_dhcpinfo_data(const char *sym_name, char *ifname)
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey /* if interface is not given, change it to empty string */
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey /* find code and category in dhcp_inittab(4) */
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey entry = inittab_getbyname(ITAB_CAT_SITE | ITAB_CAT_STANDARD |
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey ITAB_CAT_VENDOR | ITAB_CAT_FIELD, ITAB_CONS_INFO, sym_name);
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey (void) snprintf(errmsg, LINE_MAX, "unknown identifier: %s",
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey /* allocate request */
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey optnum.size = entry->ds_max * inittab_type_to_size(entry);
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey request = dhcp_ipc_alloc_request(DHCP_GET_TAG, ifname, &optnum,
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey (void) snprintf(errmsg, LINE_MAX, "failed dhcp alloc request");
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey /* make the request */
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey err = dhcp_ipc_make_request(request, &reply, DHCP_IPC_WAIT_DEFAULT);
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey dhcp_ipc_strerror(err == 0 ? reply->return_code : err));
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey /* get data from the reply */
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey opt = dhcp_ipc_get_data(reply, &opt_len, NULL);
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey (void) snprintf(errmsg, LINE_MAX, "invalid data");
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey /* check protocol error */
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey if (opt_len < 2 || (opt_len -2 != opt->len)) {
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey (void) snprintf(errmsg, LINE_MAX, "data length mismatch");
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey /* decode the data into ascii */
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey value = inittab_decode(entry, opt->value, opt_len, B_TRUE);
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey (void) snprintf(errmsg, LINE_MAX, "cannot decode reply");
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey nlog(LOG_DEBUG, "get_dhcpinfo_data() failed: %s", errmsg);
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey if (nif->nwamd_if_ipv4 && nif->nwamd_if_ipv4_default_route_set) {
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey v4dest.sin_addr.s_addr = htonl(INADDR_ANY);
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey nlog(LOG_DEBUG, "nwamd_add_default_routes: adding default "
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey "route %s", nwamd_sockaddr2str((struct sockaddr *)
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey nwamd_add_route((struct sockaddr *)&v4dest,
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey (struct sockaddr *)&nif->nwamd_if_ipv4_default_route,
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey if (nif->nwamd_if_ipv6 && nif->nwamd_if_ipv6_default_route_set) {
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey (void) bzero(&v6dest, sizeof (struct sockaddr_in6));
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey (void) bzero(&v6mask, sizeof (struct sockaddr_in6));
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey nlog(LOG_DEBUG, "nwamd_add_default_routes: adding default "
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey "route %s", nwamd_sockaddr2str((struct sockaddr *)
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey nwamd_add_route((struct sockaddr *)&v6dest,
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey (struct sockaddr *)&nif->nwamd_if_ipv6_default_route,
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * Returns the nwamd_if_address structure for the given static address,
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * NULL if not found.
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskeyfind_static_address(const struct sockaddr_storage *addr, const nwamd_ncu_t *ncu)
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey struct nwamd_if_address *nifap, *nifa = ncu->ncu_if.nwamd_if_list;
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey nwamd_sockaddr2str((struct sockaddr *)addr, str, sizeof (str)));
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey for (nifap = nifa; nifap != NULL; nifap = nifap->next) {
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey if (nifap->ipaddr_atype != IPADM_ADDR_STATIC ||
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey ipadm_get_addr(nifap->ipaddr, &saddr) != IPADM_SUCCESS)
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * Returns the nwamd_if_address structure representing the non-static address
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * in the NCU. For IPv6, both stateless and stateful (DHCPv6) share the same
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * nwamd_if_address. Will only return the nwamd_if_address if the relevant
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * address is configured (v4 DHCP, v6 either stateless or stateless) for the
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * NCU. Returns NULL if the structure is not found.
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskeyfind_nonstatic_address(const nwamd_ncu_t *ncu, sa_family_t family)
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey struct nwamd_if_address *nifap, *nifa = ncu->ncu_if.nwamd_if_list;
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey nlog(LOG_DEBUG, "find_nonstatic_address for %s %s",
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey (family == AF_INET ? "IPv4" : "IPv6"), ncu->ncu_name);
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey for (nifap = nifa; nifap != NULL; nifap = nifap->next) {
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey if (nifap->ipaddr_atype == IPADM_ADDR_STATIC)
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey if (nifap->ipaddr_atype == IPADM_ADDR_DHCP &&
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey if (nifap->ipaddr_atype == IPADM_ADDR_IPV6_ADDRCONF &&
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * Returns the nwamd_if_address structure that configured the given address,
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * NULL if not found.
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskeyfind_configured_address(const struct sockaddr_storage *addr,
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey struct nwamd_if_address *nifap, *nifa = ncu->ncu_if.nwamd_if_list;
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey nlog(LOG_DEBUG, "find_configured_address: %s",
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey nwamd_sockaddr2str((struct sockaddr *)addr, str, sizeof (str)));
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey for (nifap = nifa; nifap != NULL; nifap = nifap->next) {
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey if (sockaddrcmp(addr, &nifap->conf_addr) ||
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey sockaddrcmp(addr, &nifap->conf_stateless_addr))
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * Are one or more static addresses configured?
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskeynwamd_static_addresses_configured(nwamd_ncu_t *ncu, sa_family_t family)
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey for (n = ncu->ncu_if.nwamd_if_list; n != NULL; n = n->next) {
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey if ((family == AF_UNSPEC || family == n->family) &&
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey nlog(LOG_DEBUG, "no static addresses configured for %s", ncu->ncu_name);
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * Is DHCP probably managing an address on this index. We decide that it is
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * probably managing an address if there is an interface with IFF_DHCP set
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * that isn't in our set of static addresses. Note that IFF_DHCP gets set
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * on static addresses when we do a dhcp inform and if that list has changed
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * recently then the result of this function could be erronous.
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskeynwamd_dhcp_managing(int protocol, nwamd_ncu_t *ncu)
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey if ((ipstatus = ipadm_addr_info(ipadm_handle, ncu->ncu_name, &addrinfo,
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey "ipadm_addr_info failed for %s: %s",
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey ncu->ncu_name, ipadm_status2str(ipstatus));
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey for (a = addrinfo; a != NULL; a = IA_NEXT(a)) {
64639aaf7beb84086b88f186ea1fa9ccf0be8c57Darren Reed * WARNING: This memcpy() assumes knowledge of the
64639aaf7beb84086b88f186ea1fa9ccf0be8c57Darren Reed * implementation of getifaddrs() and that it always
64639aaf7beb84086b88f186ea1fa9ccf0be8c57Darren Reed * uses sockaddr_storage as the backing store for
64639aaf7beb84086b88f186ea1fa9ccf0be8c57Darren Reed * address information, thus making it possible to
64639aaf7beb84086b88f186ea1fa9ccf0be8c57Darren Reed * copy the entire structure rather than do it on
64639aaf7beb84086b88f186ea1fa9ccf0be8c57Darren Reed * the size of the sockaddr according to family.
64639aaf7beb84086b88f186ea1fa9ccf0be8c57Darren Reed * This assumption is made elsewhere in this file.
64639aaf7beb84086b88f186ea1fa9ccf0be8c57Darren Reed (void) memcpy(&addr, a->ia_ifa.ifa_addr, sizeof (addr));
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey /* is this address an expected static one? */
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * For IPv4, DHCPRUNNING flag is set when dhcpagent is in
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * the process of getting an address, but doesn't have one
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * yet (interface has 0.0.0.0). For IPv6, DHCPRUNNING flag
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * is set on the link-local address if trying to get a
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * stateful address. In both cases, consider the interface
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * as not being managed by DHCP and skip checking of flags.
64639aaf7beb84086b88f186ea1fa9ccf0be8c57Darren Reed ((struct sockaddr_in *)&addr)->sin_addr.s_addr ==
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * If we get here we have an address that has the
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * DHCP flag set and isn't an expected static address.
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * Return B_TRUE if IPv4 is requested in the given NCU.
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey for (n = u_if->nwamd_if_list; n != NULL; n = n->next) {
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * Returns B_TRUE if IPv6 is requested in the given NCU.
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey for (n = u_if->nwamd_if_list; n != NULL; n = n->next) {
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * Bring up the ncu if we have the right combination of requested configuration
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * and actual configuration and up is true, or bring down the ncu if no
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * addresses are configured, and up is false.
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskeyinterface_ncu_up_down(nwamd_ncu_t *ncu, boolean_t up)
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey assert(ncu->ncu_type == NWAM_NCU_TYPE_INTERFACE);
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * If V4 with or without V6 is configured then one of its interfaces
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * needs to be up for the ncu to come online. If only V6 is requested
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * then one of its interfaces needs to be up for the ncu to come online.
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey nwamd_static_addresses_configured(ncu, AF_INET))
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey nwamd_static_addresses_configured(ncu, AF_INET6)))
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey if (nwam_ncu_name_to_typed_name(ncu->ncu_name, ncu->ncu_type, &name) !=
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey "nwam_ncu_name_to_typed_name failed");
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey nwamd_object_set_state(NWAM_OBJECT_TYPE_NCU, name,
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey NWAM_STATE_OFFLINE_TO_ONLINE, NWAM_AUX_STATE_UP);
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey nwamd_object_set_state(NWAM_OBJECT_TYPE_NCU, name,
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey if ((ipstatus = ipadm_addr_info(ipadm_handle, ncu->ncu_name, &ainfo,
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey "ipadm_addr_info failed for %s: %s",
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey ncu->ncu_name, ipadm_status2str(ipstatus));
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey for (ainfop = ainfo; ainfop != NULL; ainfop = IA_NEXT(ainfop)) {
64639aaf7beb84086b88f186ea1fa9ccf0be8c57Darren Reed if (ainfop->ia_ifa.ifa_addr->sa_family != AF_INET6)
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * Returns the addrinfo associated with the given address. There is always
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * only one addrinfo for each address.
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskeyaddrinfo_for_addr(const struct sockaddr_storage *caddr, const char *ifname,
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey ipadm_addr_info_t *addrinfo, *ainfop, *last = NULL;
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey ipstatus = ipadm_addr_info(ipadm_handle, ifname, &addrinfo, 0, 0);
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey "ipadm_addr_info failed for %s: %s",
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey for (ainfop = addrinfo; ainfop != NULL; ainfop = IA_NEXT(ainfop)) {
64639aaf7beb84086b88f186ea1fa9ccf0be8c57Darren Reed (void) memcpy(&addr, ainfop->ia_ifa.ifa_addr, sizeof (addr));
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * If addresses match, rearrange pointers so that addrinfo
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * does not contain a, and return a.
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey last->ia_ifa.ifa_next = ainfop->ia_ifa.ifa_next;
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey return (*ainfo == NULL ? B_FALSE : B_TRUE);
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * Returns B_TRUE if the addrinfo associated with the given ipaddr using its
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * aobjname is found. An addrinfo list is created and returned in ainfo.
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * Stateless and stateful IPv6 addrinfo have the same aobjname, thus the need
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * to create a list of addrinfo.
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskeyaddrinfo_for_ipaddr(ipadm_addrobj_t ipaddr, const char *ifname,
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey ipstatus = ipadm_get_aobjname(ipaddr, aobjname, sizeof (aobjname));
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey ipstatus = ipadm_addr_info(ipadm_handle, ifname, &addrinfo, 0, 0);
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey "ipadm_addr_info failed for %s: %s",
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey /* If aobjnames match, rearrange pointers to create new list */
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey if (strcmp(ainfop->ia_aobjname, aobjname) == 0) {
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey ainfop = IA_NEXT(ainfop); /* move iterator */
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey last->ia_ifa.ifa_next = match->ia_ifa.ifa_next;
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey match->ia_ifa.ifa_next = &(*ainfo)->ia_ifa;
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey return (*ainfo == NULL ? B_FALSE : B_TRUE);
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * Add the address provided in the nwamd_if_address. If DHCP is required,
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * start DHCP. If a static address is configured, create the address; then do
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * a DHCP_INFORM (in a separate thread) to get other networking configuration
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * parameters. RTM_NEWADDRs - translated into IF_STATE events - will then
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * finish the job of bringing the NCU online.
48fff0e3de5e66bd25183e5fcb5f172d19057078Renee Danson Sommerfeldadd_ip_address(const char *ifname, const struct nwamd_if_address *nifa,
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey if (nifa->ipaddr_atype == IPADM_ADDR_DHCP) {
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * To make getting a DHCP address asynchronous, call
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * ipadm_create_addr() in a new thread.
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey nwamd_dhcp(ifname, nifa->ipaddr, DHCP_START);
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey nlog(LOG_DEBUG, "add_ip_address: adding %s address on %s",
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey if ((ipstatus = ipadm_create_addr(ipadm_handle, nifa->ipaddr,
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey IPADM_OPT_ACTIVE | IPADM_OPT_UP)) != IPADM_SUCCESS) {
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey "ipadm_create_addr failed on %s: %s",
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * When creating a static address, ipadm_create_addr() returns
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * SUCCESS even if duplicate address is detected. Retrieve
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * the addrinfo to get the flags.
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey if (nifa->ipaddr_atype == IPADM_ADDR_STATIC) {
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * Since we are configuring a static address, there
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * will be just *ONE* addrinfo with the aobjname in
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * nifa->ipaddr.
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey if (!addrinfo_for_ipaddr(nifa->ipaddr, ifname,
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey "duplicate address detected on %s", ifname);
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey if ((err = nwam_ncu_name_to_typed_name(ifname,
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey "could not create state event "
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey "for %s: %s",
48fff0e3de5e66bd25183e5fcb5f172d19057078Renee Danson Sommerfeld * Do DHCP_INFORM using async ipadm_refresh_addr().
48fff0e3de5e66bd25183e5fcb5f172d19057078Renee Danson Sommerfeld * Only need to do this once per interface, and we
48fff0e3de5e66bd25183e5fcb5f172d19057078Renee Danson Sommerfeld * do *not* need to do it if we are also getting a
48fff0e3de5e66bd25183e5fcb5f172d19057078Renee Danson Sommerfeld * dhcp lease; so we only send the INFORM if the
48fff0e3de5e66bd25183e5fcb5f172d19057078Renee Danson Sommerfeld * passed-in flag says to, and we clear the flag
48fff0e3de5e66bd25183e5fcb5f172d19057078Renee Danson Sommerfeld * once we've initiated the INFORM transaction.
48fff0e3de5e66bd25183e5fcb5f172d19057078Renee Danson Sommerfeld nwamd_dhcp(ifname, nifa->ipaddr, DHCP_INFORM);
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * Adds addresses for the given NCU.
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskeynwamd_configure_interface_addresses(nwamd_ncu_t *ncu)
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey struct nwamd_if_address *nifap, *nifa = ncu->ncu_if.nwamd_if_list;
48fff0e3de5e66bd25183e5fcb5f172d19057078Renee Danson Sommerfeld /* only need an inform if we're not also getting a dhcp lease */
48fff0e3de5e66bd25183e5fcb5f172d19057078Renee Danson Sommerfeld do_inform = !ncu->ncu_if.nwamd_if_dhcp_requested;
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey nlog(LOG_DEBUG, "nwamd_configure_interface_addresses(%s)",
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey for (nifap = nifa; nifap != NULL; nifap = nifap->next) {
48fff0e3de5e66bd25183e5fcb5f172d19057078Renee Danson Sommerfeld nifap->configured = add_ip_address(ncu->ncu_name, nifap,
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * This event tells us that an interface address has appeared or disappeared,
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * or that the interface flags on an interface have changed.
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskeynwamd_ncu_handle_if_state_event(nwamd_event_t event)
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey ncu_obj = nwamd_object_find(NWAM_OBJECT_TYPE_NCU,
f6904bc3cbac0d84f41b1eb2ed9489a8f221695cRenee Danson Sommerfeld nlog(LOG_INFO, "nwamd_ncu_handle_if_state_event: no object %s",
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey aux_state = ncu_obj->nwamd_object_aux_state;
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey nlog(LOG_DEBUG, "nwamd_ncu_handle_if_state_event: "
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey "if %s, state (%s, %s)", event->event_object,
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey nwam_state_to_string(state), nwam_aux_state_to_string(aux_state));
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey /* Ensure object is in correct state to handle IF state events */
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey if (aux_state != NWAM_AUX_STATE_IF_WAITING_FOR_ADDR &&
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey aux_state != NWAM_AUX_STATE_IF_DHCP_TIMED_OUT) {
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey nlog(LOG_DEBUG, "nwamd_ncu_handle_if_state_event: "
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey "if %s is in invalid aux state %s for IF_STATE "
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * We can get addresses from DHCP after we've taken the interface down.
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * We deal with those below.
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey nlog(LOG_DEBUG, "nwamd_ncu_handle_if_state_event: "
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey "if %s is in invalid state %s for IF_STATE events",
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey event->event_object, nwam_state_to_string(state));
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey if (evm->nwe_data.nwe_if_state.nwe_addr_valid) {
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey boolean_t v4dhcp_running, v6dhcp_running, stateless_running;
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey ipadm_addr_info_t *ai = NULL, *addrinfo = NULL;
64639aaf7beb84086b88f186ea1fa9ccf0be8c57Darren Reed struct sockaddr_storage *addr, ai_addr, *aip = NULL;
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey "nwamd_ncu_handle_if_state_event: addr %s %s",
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey nwamd_sockaddr2str((struct sockaddr *)addr, addrstr,
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey sizeof (addrstr)), addr_added ? "added" : "removed");
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * Need to get flags for this interface. Get the addrinfo for
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * the address that generated this IF_STATE event.
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * Address was added. Find the addrinfo for this
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * address and the nwamd_if_address corresponding to
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * this address.
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey if (!addrinfo_for_addr(addr, ncu->ncu_name, &ai)) {
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey "nwamd_ncu_handle_if_state_event: "
64639aaf7beb84086b88f186ea1fa9ccf0be8c57Darren Reed (void) memcpy(&ai_addr, addrinfo->ia_ifa.ifa_addr,
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey if (addrinfo->ia_atype == IPADM_ADDR_IPV6_ADDRCONF ||
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey nifa = find_nonstatic_address(ncu, family);
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey else if (addrinfo->ia_atype == IPADM_ADDR_STATIC)
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * If nwamd_if_address is not found, then this address
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * isn't one that nwamd created. Remove it.
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey "nwamd_ncu_handle_if_state_event: "
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey "address %s not managed by nwam added, "
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey nwamd_down_interface(addrinfo->ia_aobjname,
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey /* check flags to determine how intf is configured */
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey stateless_running = (family == AF_INET6) &&
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey ((flags & STATELESS_RUNNING) == STATELESS_RUNNING);
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey static_addr = (addrinfo->ia_atype == IPADM_ADDR_STATIC);
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey /* copy the configured address into nwamd_if_address */
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey sizeof (struct sockaddr_storage));
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey sizeof (struct sockaddr_storage));
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * Address was removed. Find the nwamd_if_address
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * that configured this address.
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey "nwamd_ncu_handle_if_state_event: "
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey "address %s not managed by nwam removed, "
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey if (addrinfo_for_ipaddr(nifa->ipaddr, ncu->ncu_name,
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * Since multiple addrinfo can have
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * the same ipaddr, find the one for
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * the address that generated this
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * state event.
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * Stateful and stateless IPv6
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * addrinfo have the same aobjname.
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * Use the flags to determine which
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * address is present in the system.
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey /* Set the flags in the event for listeners */
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey evm->nwe_data.nwe_if_state.nwe_flags = flags;
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * Check for failure due to CR 6745448: if we get a
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * report that an address has been deleted, then check
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * for interface up, datalink down, and actual address
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * non-zero. If that combination is seen, then this is
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * a DHCP cached lease, and we need to remove it from
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * the system, or it'll louse up the kernel routes
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * (which aren't smart enough to avoid dead
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * interfaces).
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey if (((struct sockaddr_in *)addr)->sin_addr.s_addr
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey "nwamd_ncu_handle_if_state_event: "
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey "bug workaround: clear out addr "
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * If we received an RTM_NEWADDR and the IFF_UP flags has not
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * been set, ignore this IF_STATE event. Once the IFF_UP flag
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * is set, we'll get another RTM_NEWADDR message.
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey nlog(LOG_INFO, "nwamd_ncu_handle_if_state_event: "
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey "address %s added on %s without IFF_UP flag (%x), "
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey "ignoring IF_STATE event",
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * Has the address really been removed? Sometimes spurious
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * RTM_DELADDRs are generated, so we need to ensure that
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * the address is really gone. If IFF_DUPLICATE is set,
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * we're getting the RTM_DELADDR due to DAD, so don't test
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * in that case.
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey if (!addr_added && !(flags & IFF_DUPLICATE)) {
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey "nwamd_ncu_handle_if_state_event: "
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey "address %s is not really gone from %s, "
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey "ignoring IF_STATE event",
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * Address has been added.
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * We need to make sure that we really want to keep
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * this address. There is a race where we requested an
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * address but by the time we got here we don't really
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * want it and need to remove it.
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * Once we decide we want the address adjust the ncu
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * state accordingly. For example if this address is
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * enough move online.
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey if (u_if->nwamd_if_dhcp_requested && v4dhcp_running) {
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey } else if (u_if->nwamd_if_stateful_requested &&
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey u_if->nwamd_if_stateful_configured = B_TRUE;
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey } else if (u_if->nwamd_if_stateless_requested &&
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey u_if->nwamd_if_stateless_configured = B_TRUE;
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * This is something we didn't expect. Remove
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * the address.
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey nwamd_down_interface(addrinfo->ia_aobjname,
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * The address looks valid so mark configured and
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * move online if we either have a v4 address if
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * v4 is configured or a v6 address if only v6 is
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * configured.
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * Refresh network/location since we may also have other
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * DHCP information. We might have to restore it first
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * in case it is in maintenance.
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey nlog(LOG_DEBUG, "nwamd_handle_if_state_event: "
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey "refreshing %s as we may have other "
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey if (smf_refresh_instance(NET_LOC_FMRI) != 0) {
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey "nwamd_ncu_handle_if_state_"
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey "event: refresh of %s "
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * Address has been removed. Only pay attention to
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * disappearing addresses if we are online or coming
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * Undo whatever configuration is necessary. Note
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * that this may or may not cause the NCU to go down.
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * We can get RTM_DELADDRs for duplicate addresses
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey * so deal with this seperately.
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey } else if (!static_addr && family == AF_INET6) {
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * The address is already gone. When looking
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * for the addrinfo (using aobjname in
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * ipaddr), we found addrinfo for either one
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * or both stateless and stateful. Using the
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * flags we determined whether each was
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * configured or not. Update the flags here
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * accordingly.
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey "nwamd_ncu_handle_if_state_event: "
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey "duplicate address detected on %s",
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey nwamd_object_set_state(NWAM_OBJECT_TYPE_NCU,
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskeynwamd_ncu_handle_if_action_event(nwamd_event_t event)
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey event->event_object[0] == '\0' ? "n/a" : event->event_object);
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey ncu_obj = nwamd_object_find(NWAM_OBJECT_TYPE_NCU, event->event_object);
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey nlog(LOG_ERR, "nwamd_ncu_handle_if_action_event: no object");
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * Remove the address in the given aobjname. IPADM_OPT_RELEASE is specified
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * for a DHCP address and specifies that the DHCP lease should also be released.
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey * ifname is only used for nlog().
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskeynwamd_down_interface(const char *aobjname, ipadm_addr_type_t atype,
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey uint32_t rflags = (atype == IPADM_ADDR_DHCP ? IPADM_OPT_RELEASE : 0);
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey nlog(LOG_DEBUG, "nwamd_down_interface: %s [aobjname = %s]",
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey if ((ipstatus = ipadm_delete_addr(ipadm_handle, aobjname,
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey IPADM_OPT_ACTIVE | rflags)) != IPADM_SUCCESS) {
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey "ipadm_delete_addr failed on %s: %s",
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskeyunconfigure_addresses(nwamd_ncu_t *ncu, sa_family_t af)
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey struct nwamd_if_address *nifap, *nifa = ncu->ncu_if.nwamd_if_list;
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey for (nifap = nifa; nifap != NULL; nifap = nifap->next)
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey if (af == AF_UNSPEC || nifap->family == af)
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey if (ipadm_addr_info(ipadm_handle, ifname, &ainfo, 0, 0)
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey for (ainfop = ainfo; ainfop != NULL; ainfop = IA_NEXT(ainfop)) {
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskeynwamd_plumb_unplumb_interface(nwamd_ncu_t *ncu, sa_family_t af, boolean_t plumb)
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey nlog(LOG_DEBUG, "nwamd_plumb_unplumb_interface: %s %s %s",
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey (plumb ? "plumb" : "unplumb"), (af == AF_INET ? "IPv4" : "IPv6"),
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey ipstatus = ipadm_create_if(ipadm_handle, ifname, af,
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey /* release DHCP address, if any */
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey ipstatus = ipadm_delete_if(ipadm_handle, ifname, af,
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey if ((plumb && ipstatus != IPADM_IF_EXISTS) ||
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey nlog(LOG_ERR, "nwamd_plumb_unplumb_interface: "
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey "%s %s failed for %s: %s",
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey /* Unset flags */
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey u_if->nwamd_if_stateful_configured = B_FALSE;
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey u_if->nwamd_if_stateless_configured = B_FALSE;
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskeynwamd_plumb_interface(nwamd_ncu_t *ncu, sa_family_t af)
38f140aaa4a32508dc5318744dd8d51ab84b23a5Michael Hunter * We get all posssible privs by calling nwamd_deescalate(). During
38f140aaa4a32508dc5318744dd8d51ab84b23a5Michael Hunter * startup opening /dev/dld (data link management) needs all privs
38f140aaa4a32508dc5318744dd8d51ab84b23a5Michael Hunter * because we don't have access to /etc/security/device_policy yet.
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey nwamd_plumb_unplumb_interface(ncu, af, B_TRUE);
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskeynwamd_unplumb_interface(nwamd_ncu_t *ncu, sa_family_t af)
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey nwamd_plumb_unplumb_interface(ncu, af, B_FALSE);
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey struct nwamd_dhcp_thread_arg *thread_arg = arg;
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey /* Make sure the NCU is in appropriate state for DHCP command */
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey ncu_obj = nwamd_ncu_object_find(NWAM_NCU_TYPE_INTERFACE, name);
48fff0e3de5e66bd25183e5fcb5f172d19057078Renee Danson Sommerfeld nlog(LOG_ERR, "start_dhcp: no IP object %s", name);
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey if (ncu_obj->nwamd_object_state != NWAM_STATE_OFFLINE_TO_ONLINE &&
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey ncu_obj->nwamd_object_state != NWAM_STATE_ONLINE) {
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey nlog(LOG_INFO, "start_dhcp: IP NCU %s is in invalid state "
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey "for DHCP command", ncu_obj->nwamd_object_name);
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey if ((ipstatus = ipadm_get_aobjname(ipaddr, aobjname,
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey "ipadm_get_aobjname failed for %s: %s",
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey ipstatus = ipadm_refresh_addr(ipadm_handle, aobjname,
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey ipstatus = ipadm_create_addr(ipadm_handle, ipaddr,
3dbbe3fb79c81fac93e4001bdf68eb06c8a086e8Anurag S. Maskey nlog(LOG_ERR, "start_dhcp: invalid dhcp_ipc_type_t: %d", type);
3dbbe3fb79c81fac93e4001bdf68eb06c8a086e8Anurag S. Maskey * DHCP timed out: for DHCP_START requests, change state for
3dbbe3fb79c81fac93e4001bdf68eb06c8a086e8Anurag S. Maskey * this NCU and euqueue event to check NCU priority-groups;
3dbbe3fb79c81fac93e4001bdf68eb06c8a086e8Anurag S. Maskey * for DHCP_INFORM requests, nothing to do.
3dbbe3fb79c81fac93e4001bdf68eb06c8a086e8Anurag S. Maskey "start_dhcp: DHCP_START timed out for %s", name);
3dbbe3fb79c81fac93e4001bdf68eb06c8a086e8Anurag S. Maskey "nwam_ncu_name_to_typed_name failed for %s",
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey nwamd_object_set_state(NWAM_OBJECT_TYPE_NCU,
3dbbe3fb79c81fac93e4001bdf68eb06c8a086e8Anurag S. Maskey "start_dhcp: DHCP_INFORM timed out for %s", name);
3dbbe3fb79c81fac93e4001bdf68eb06c8a086e8Anurag S. Maskey } else if ((ipstatus == IPADM_DHCP_IPC_ERROR ||
3dbbe3fb79c81fac93e4001bdf68eb06c8a086e8Anurag S. Maskey ipstatus == IPADM_IPC_ERROR) && retries++ < NWAMD_DHCP_RETRIES) {
3dbbe3fb79c81fac93e4001bdf68eb06c8a086e8Anurag S. Maskey * Retry DHCP request as we may have been unplumbing as part
3dbbe3fb79c81fac93e4001bdf68eb06c8a086e8Anurag S. Maskey * of the configuration phase.
3dbbe3fb79c81fac93e4001bdf68eb06c8a086e8Anurag S. Maskey nlog(LOG_ERR, "start_dhcp: ipadm_%s_addr on %s returned: %s, "
3dbbe3fb79c81fac93e4001bdf68eb06c8a086e8Anurag S. Maskey "retrying in %d sec",
3dbbe3fb79c81fac93e4001bdf68eb06c8a086e8Anurag S. Maskey (type == DHCP_START ? "create" : "refresh"), name,
3dbbe3fb79c81fac93e4001bdf68eb06c8a086e8Anurag S. Maskey ipadm_status2str(ipstatus), NWAMD_DHCP_RETRY_WAIT_TIME);
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey nlog(LOG_ERR, "start_dhcp: ipadm_%s_addr failed for %s: %s",
3dbbe3fb79c81fac93e4001bdf68eb06c8a086e8Anurag S. Maskey (type == DHCP_START ? "create" : "refresh"), name,
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskeynwamd_dhcp(const char *ifname, ipadm_addrobj_t ipaddr, dhcp_ipc_type_t cmd)
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey nlog(LOG_DEBUG, "nwamd_dhcp: starting DHCP %s thread for %s",
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey nlog(LOG_ERR, "nwamd_dhcp: error allocating memory for "
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey "dhcp request");
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey (void) pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
6ba597c56d749c61b4f783157f63196d7b2445f0Anurag S. Maskey if (pthread_create(NULL, &attr, start_dhcp_thread, arg) == -1) {
f6da83d4178694e7113b71d1e452f15b296f73d8Anurag S. Maskey nlog(LOG_ERR, "nwamd_dhcp: cannot start dhcp thread");