ni_bool_t
ni_config_parse_addrconf_dhcp4(struct ni_config_dhcp4 *dhcp4, xml_node_t *node)
{
xml_node_t *child;
for (child = node->children; child; child = child->next) {
const char *attrval;
if (!strcmp(child->name, "vendor-class"))
ni_string_dup(&dhcp4->vendor_class, child->cdata);
if (!strcmp(child->name, "lease-time") && child->cdata)
dhcp4->lease_time = strtoul(child->cdata, NULL, 0);
if (!strcmp(child->name, "ignore-server")
&& (attrval = xml_node_get_attr(child, "ip")) != NULL)
ni_string_array_append(&dhcp4->ignore_servers, attrval);
if (!strcmp(child->name, "prefer-server")
&& (attrval = xml_node_get_attr(child, "ip")) != NULL) {
ni_server_preference_t *pref;
if (dhcp4->num_preferred_servers >= NI_DHCP_SERVER_PREFERENCES_MAX) {
ni_warn("config: too many <prefer-server> elements");
continue;
}
pref = &dhcp4->preferred_server[dhcp4->num_preferred_servers++];
if (ni_sockaddr_parse(&pref->address, attrval, AF_INET) < 0) {
ni_error("config: unable to parse <prefer-server ip=\"%s\"",
attrval);
return FALSE;
}
pref->weight = 100;
if ((attrval = xml_node_get_attr(child, "weight")) != NULL) {
if (!strcmp(attrval, "always")) {
pref->weight = 100;
} else if (!strcmp(attrval, "never")) {
pref->weight = -1;
} else {
pref->weight = strtol(attrval, NULL, 0);
if (pref->weight > 100) {
pref->weight = 100;
ni_warn("preferred dhcp server weight exceeds max, "
"clamping to %d",
pref->weight);
}
}
}
}
if (!strcmp(child->name, "allow-update"))
ni_config_parse_update_targets(&dhcp4->allow_update, child);
}
return TRUE;
}
static int
__ni_dhcp6_lease_ia_addr_from_xml(ni_dhcp6_ia_addr_t *iadr, unsigned int type,
const xml_node_t *node)
{
const xml_node_t *child;
const char *name;
ni_sockaddr_t addr;
unsigned int value;
name = (type == NI_DHCP6_OPTION_IA_PD) ? "prefix" : "address";
for (child = node->children; child; child = child->next) {
if (ni_string_eq(child->name, name) && child->cdata) {
if (type == NI_DHCP6_OPTION_IA_PD) {
if (!ni_sockaddr_prefix_parse(child->cdata,
&addr, &value)
|| value == 0 || value > 128
|| addr.ss_family != AF_INET6)
return -1;
iadr->addr = addr.six.sin6_addr;
iadr->plen = value;
} else {
if (ni_sockaddr_parse(&addr, child->cdata,
AF_INET6) != 0)
return -1;
iadr->addr = addr.six.sin6_addr;
iadr->plen = 0;
}
} else
if (ni_string_eq(child->name, "preferred-lft") && child->cdata) {
if (ni_parse_uint(child->cdata, &value, 10) != 0)
return -1;
iadr->preferred_lft = value;
} else
if (ni_string_eq(child->name, "valid-lft") && child->cdata) {
if (ni_parse_uint(child->cdata, &value, 10) != 0)
return -1;
iadr->valid_lft = value;
} else
if (ni_string_eq(child->name, "status")) {
if (__ni_dhcp6_lease_status_from_xml(&iadr->status, child) < 0)
return -1;
}
}
ni_sockaddr_set_ipv6(&addr, iadr->addr, 0);
if (ni_sockaddr_is_ipv6_specified(&addr))
return 0;
else
return 1;
}
static int
__ni_addrconf_lease_route_nh_from_xml(ni_route_t *rp, const xml_node_t *node)
{
const xml_node_t *child;
ni_route_nexthop_t *nh = NULL;
ni_sockaddr_t addr;
for (child = node->children; child; child = child->next) {
if (ni_string_eq(child->name, "gateway") && child->cdata) {
if (ni_sockaddr_parse(&addr, child->cdata, AF_UNSPEC) != 0)
return -1;
if (rp->family != addr.ss_family)
return -1;
if (nh == NULL) {
nh = ni_route_nexthop_new();
ni_route_nexthop_list_append(&rp->nh.next, nh);
}
nh->gateway = addr;
nh = NULL;
}
}
return 0;
}
int
ni_dhcp6_lease_data_from_xml(ni_addrconf_lease_t *lease, const xml_node_t *node, const char *ifname)
{
const char *ia_na_name = ni_dhcp6_option_name(NI_DHCP6_OPTION_IA_NA);
const char *ia_ta_name = ni_dhcp6_option_name(NI_DHCP6_OPTION_IA_TA);
const char *ia_pd_name = ni_dhcp6_option_name(NI_DHCP6_OPTION_IA_PD);
unsigned int value;
ni_sockaddr_t addr;
xml_node_t *child;
if (!lease || !node)
return -1;
lease->dhcp6.rapid_commit = FALSE;
for (child = node->children; child; child = child->next) {
if (ni_string_eq(child->name, "client-id") && child->cdata) {
if (!ni_duid_parse_hex(&lease->dhcp6.client_id, child->cdata))
return -1;
} else
if (ni_string_eq(child->name, "server-id") && child->cdata) {
if (!ni_duid_parse_hex(&lease->dhcp6.server_id, child->cdata))
return -1;
} else
if (ni_string_eq(child->name, "server-address") && child->cdata) {
if (ni_sockaddr_parse(&addr, child->cdata, AF_INET6) < 0)
return -1;
lease->dhcp6.server_addr = addr.six.sin6_addr;
} else
if (ni_string_eq(child->name, "server-preference") && child->cdata) {
if (ni_parse_uint(child->cdata, &value, 10) != 0 || value > 255)
return -1;
lease->dhcp6.server_pref = value;
} else
if (ni_string_eq(child->name, "rapid-commit")) {
lease->dhcp6.rapid_commit = TRUE;
} else
if (ni_string_eq(child->name, "hostname") && child->cdata) {
ni_string_dup(&lease->hostname, child->cdata);
}
if (ni_string_eq(child->name, ia_na_name)) {
if (__ni_dhcp6_lease_ia_type_from_xml(&lease->dhcp6.ia_list,
NI_DHCP6_OPTION_IA_NA, child) < 0)
return -1;
} else
if (ni_string_eq(child->name, ia_ta_name)) {
if (__ni_dhcp6_lease_ia_type_from_xml(&lease->dhcp6.ia_list,
NI_DHCP6_OPTION_IA_TA, child) < 0)
return -1;
} else
if (ni_string_eq(child->name, ia_pd_name)) {
if (__ni_dhcp6_lease_ia_type_from_xml(&lease->dhcp6.ia_list,
NI_DHCP6_OPTION_IA_PD, child) < 0)
return -1;
} else
if (ni_string_eq(child->name, "boot")) {
if (__ni_dhcp6_lease_boot_from_xml(lease, child) < 0)
return -1;
} else
if (ni_string_eq(child->name, NI_ADDRCONF_LEASE_XML_DNS_DATA_NODE)) {
if (ni_addrconf_lease_dns_data_from_xml(lease, child, ifname) < 0)
return -1;
} else
if (ni_string_eq(child->name, NI_ADDRCONF_LEASE_XML_NTP_DATA_NODE)) {
if (ni_addrconf_lease_ntp_data_from_xml(lease, child, ifname) < 0)
return -1;
} else
if (ni_string_eq(child->name, NI_ADDRCONF_LEASE_XML_SIP_DATA_NODE)) {
if (ni_addrconf_lease_sip_data_from_xml(lease, child, ifname) < 0)
return -1;
} else
if (ni_string_eq(child->name, NI_ADDRCONF_LEASE_XML_PTZ_DATA_NODE)) {
if (ni_addrconf_lease_ptz_data_from_xml(lease, child, ifname) < 0)
return -1;
} else
if (ni_string_eq(child->name, NI_ADDRCONF_LEASE_XML_OPTS_DATA_NODE)) {
if (ni_addrconf_lease_opts_data_from_xml(lease, child, ifname) < 0)
return -1;
}
}
return 0;
}
int
ni_do_arp(int argc, char **argv)
{
static struct option options[] = {
{ "help", no_argument, NULL, OPT_HELP },
{ "quiet", no_argument, NULL, OPT_QUIET },
{ "verbose", no_argument, NULL, OPT_VERBOSE },
{ "verify", required_argument, NULL, OPT_VERIFY },
{ "notify", required_argument, NULL, OPT_NOTIFY },
{ "interval", required_argument, NULL, OPT_TIMEOUT },
{ NULL, no_argument, NULL, 0 }
};
int c, status = NI_WICKED_RC_USAGE;
unsigned int opt_verbose = OPT_VERBOSE;
unsigned int opt_nprobes;
unsigned int opt_nclaims;
struct arp_handle handle;
memset(&handle, 0, sizeof(handle));
handle.nprobes = opt_nprobes = 3;
handle.nclaims = opt_nclaims = 0;
handle.timeout = 200;
optind = 1;
while ((c = getopt_long(argc, argv, "", options, NULL)) != EOF) {
switch (c) {
case OPT_HELP:
status = NI_WICKED_RC_SUCCESS;
default:
usage:
fprintf(stderr,
"wicked %s [options ...] <ifname> <IP address>\n"
"\n"
"Supported options:\n"
" --help\n"
" Show this help text.\n"
" --quiet\n"
" Return exit status only\n"
" --verbose\n"
" Show a result info (default)\n"
"\n"
" --verify <count>\n"
" Verify IP for duplicates on the network (DAD);\n"
" Returns 4, when duplicate IP address exists.\n"
" --notify <count>\n"
" Notify about IP address use (gratuitous ARP)\n"
" --interval <msec>\n"
" Packet sending interval in msec\n"
, argv[0]
);
goto cleanup;
case OPT_QUIET:
case OPT_VERBOSE:
opt_verbose = c;
break;
case OPT_VERIFY:
if (ni_parse_uint(optarg, &opt_nprobes, 10)) {
ni_error("%s: Cannot parse verify count '%s'",
argv[0], optarg);
goto cleanup;
}
handle.nprobes = opt_nprobes;
break;
case OPT_NOTIFY:
if (ni_parse_uint(optarg, &opt_nclaims, 10)) {
ni_error("%s: Cannot parse notify count '%s'",
argv[0], optarg);
goto cleanup;
}
handle.nclaims = opt_nclaims;
break;
case OPT_TIMEOUT:
if (ni_parse_uint(optarg, &handle.timeout, 10)) {
ni_error("%s %s: Cannot parse interval '%s'",
argv[0], argv[1], optarg);
goto cleanup;
}
break;
}
}
if (optind + 2 != argc)
goto usage;
if (!handle.nprobes && !handle.nclaims) {
ni_error("%s: nothing to send", argv[0]);
goto cleanup;
}
handle.ifname = argv[optind++];
if (ni_string_empty(handle.ifname))
goto cleanup;
if (ni_sockaddr_parse(&handle.ipaddr, argv[optind], AF_INET) != 0) {
ni_error("%s: cannot parse '%s' as IPv4 address",
argv[0], argv[optind]);
goto cleanup;
}
status = __do_arp_validate(&handle);
if (opt_verbose) {
if (handle.hwaddr.len) {
printf("%s: IP address %s is in use by %s\n",
handle.ifname,
ni_sockaddr_print(&handle.ipaddr),
ni_link_address_print(&handle.hwaddr));
} else {
if (opt_nprobes) {
printf("%s: No duplicates for IP address %s detected\n",
handle.ifname,
ni_sockaddr_print(&handle.ipaddr));
}
if (opt_nclaims) {
printf("%s: Notified neighbours about IP address %s\n",
handle.ifname,
ni_sockaddr_print(&handle.ipaddr));
}
}
}
cleanup:
return status;
}
static int
__ni_addrconf_lease_addr_from_xml(ni_address_t **ap_list, unsigned int family,
const xml_node_t *node)
{
const xml_node_t *child;
ni_sockaddr_t addr;
unsigned int plen;
ni_address_t *ap;
if (!(child = xml_node_get_child(node, "local")))
return 1;
if (ni_sockaddr_prefix_parse(child->cdata, &addr, &plen))
return -1;
if (family != addr.ss_family ||
(family == AF_INET && plen > 32) ||
(family == AF_INET6 && plen > 128))
return -1;
if (!(ap = ni_address_new(family, plen, &addr, NULL)))
return -1;
if ((child = xml_node_get_child(node, "peer"))) {
if (ni_sockaddr_parse(&ap->peer_addr, child->cdata, family) != 0)
goto failure;
}
if ((child = xml_node_get_child(node, "anycast"))) {
if (ni_sockaddr_parse(&ap->anycast_addr, child->cdata, family) != 0)
goto failure;
}
if ((child = xml_node_get_child(node, "broadcast"))) {
if (ni_sockaddr_parse(&ap->bcast_addr, child->cdata, family) != 0)
goto failure;
}
if (family == AF_INET && (child = xml_node_get_child(node, "label"))) {
ni_string_dup(&ap->label, child->cdata);
}
if ((child = xml_node_get_child(node, "cache-info"))) {
xml_node_t *cnode;
unsigned int lft;
if ((cnode = xml_node_get_child(child, "preferred-lifetime"))) {
if (ni_parse_uint(child->cdata, &lft, 10) != 0)
goto failure;
ap->ipv6_cache_info.preferred_lft = lft;
}
if ((cnode = xml_node_get_child(child, "valid-lifetime"))) {
if (ni_parse_uint(child->cdata, &lft, 10) != 0)
goto failure;
ap->ipv6_cache_info.valid_lft = lft;
}
}
ni_address_list_append(ap_list, ap);
return 0;
failure:
ni_address_free(ap);
return -1;
}
ni_bool_t
ni_config_parse_addrconf_dhcp6(struct ni_config_dhcp6 *dhcp6, xml_node_t *node)
{
xml_node_t *child;
for (child = node->children; child; child = child->next) {
const char *attrval;
if (!strcmp(child->name, "default-duid") && !ni_string_empty(child->cdata)) {
ni_string_dup(&dhcp6->default_duid, child->cdata);
} else
if (!strcmp(child->name, "user-class")) {
ni_string_array_destroy(&dhcp6->user_class_data);
if (__ni_config_parse_dhcp6_class_data_nodes(child, &dhcp6->user_class_data) < 0) {
ni_string_array_destroy(&dhcp6->user_class_data);
return FALSE;
}
if (dhcp6->user_class_data.count == 0) {
ni_warn("config: discarding <user-class> without any <class-data>");
}
} else
if (!strcmp(child->name, "vendor-class") &&
(attrval = xml_node_get_attr(child, "enterprise-number")) != NULL) {
char * err;
long num;
num = strtol(attrval, &err, 0);
if (*err != '\0' || num < 0 || num >= 0xffffffff) {
ni_error("config: unable to parse <vendor-class enterprise-number=\"%s\"",
attrval);
return FALSE;
}
ni_string_array_destroy(&dhcp6->vendor_class_data);
if (__ni_config_parse_dhcp6_class_data_nodes(child, &dhcp6->vendor_class_data) < 0) {
ni_string_array_destroy(&dhcp6->vendor_class_data);
return FALSE;
}
if (dhcp6->vendor_class_data.count == 0) {
ni_warn("config: discarding <vendor-class> without any <class-data>");
} else {
dhcp6->vendor_class_en = num;
}
} else
if (!strcmp(child->name, "vendor-opts") &&
(attrval = xml_node_get_attr(child, "enterprise-number")) != NULL) {
char * err;
long num;
num = strtol(attrval, &err, 0);
if (*err != '\0' || num < 0 || num >= 0xffffffff) {
ni_error("config: unable to parse <vendor-class enterprise-number=\"%s\"",
attrval);
return FALSE;
}
ni_var_array_destroy(&dhcp6->vendor_opts_data);
if (__ni_config_parse_dhcp6_vendor_opts_nodes(child, &dhcp6->vendor_opts_data) < 0) {
ni_var_array_destroy(&dhcp6->vendor_opts_data);
}
if (dhcp6->vendor_opts_data.count == 0) {
ni_warn("config: discarding <vendor-opts> without any <option>");
} else {
dhcp6->vendor_opts_en = num;
}
} else
if (!strcmp(child->name, "lease-time") && child->cdata) {
dhcp6->lease_time = strtoul(child->cdata, NULL, 0);
} else
if (!strcmp(child->name, "ignore-server")
&& (attrval = xml_node_get_attr(child, "ip")) != NULL) {
ni_string_array_append(&dhcp6->ignore_servers, attrval);
} else
if (!strcmp(child->name, "prefer-server")) {
ni_server_preference_t *pref;
const char *id, *ip;
ip = xml_node_get_attr(child, "ip");
id = xml_node_get_attr(child, "id");
if (ip == NULL && id == NULL)
continue;
if (dhcp6->num_preferred_servers >= NI_DHCP_SERVER_PREFERENCES_MAX) {
ni_warn("config: too many <prefer-server> elements");
continue;
}
pref = &dhcp6->preferred_server[dhcp6->num_preferred_servers++];
if (ip && ni_sockaddr_parse(&pref->address, ip, AF_INET6) < 0) {
ni_error("config: unable to parse <prefer-server ip=\"%s\"",
ip);
return FALSE;
}
if (id) {
int len;
/* DUID is "opaque", but has 2 bytes type + up to 128 bytes */
if ((len = sizeof(pref->serverid.data)) > 130)
len = 130;
/* DUID-LL has 2+2 fixed bytes + variable length hwaddress
* and seems to be the shortest one I'm aware of ... */
if ((len = ni_parse_hex(id, pref->serverid.data, len)) <= 4) {
ni_error("config: unable to parse <prefer-server id=\"%s\"",
id);
return FALSE;
}
pref->serverid.len = (size_t)len;
}
pref->weight = 255;
if ((attrval = xml_node_get_attr(child, "weight")) != NULL) {
if (!strcmp(attrval, "always")) {
pref->weight = 255;
} else if (!strcmp(attrval, "never")) {
pref->weight = -1;
} else {
pref->weight = strtol(attrval, NULL, 0);
if (pref->weight > 255) {
pref->weight = 255;
ni_warn("preferred dhcp server weight exceeds max, "
"clamping to %d",
pref->weight);
}
}
}
} else
if (!strcmp(child->name, "allow-update")) {
ni_config_parse_update_targets(&dhcp6->allow_update, child);
}
}
return TRUE;
}
