summaryrefslogtreecommitdiff
path: root/src/resolve/resolve-tool.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/resolve/resolve-tool.c')
-rw-r--r--src/resolve/resolve-tool.c2025
1 files changed, 0 insertions, 2025 deletions
diff --git a/src/resolve/resolve-tool.c b/src/resolve/resolve-tool.c
deleted file mode 100644
index 9d4d04220c..0000000000
--- a/src/resolve/resolve-tool.c
+++ /dev/null
@@ -1,2025 +0,0 @@
-/***
- This file is part of systemd.
-
- Copyright 2014 Zbigniew Jędrzejewski-Szmek
-
- systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 of the License, or
- (at your option) any later version.
-
- systemd is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
-
-#include <getopt.h>
-#include <net/if.h>
-
-#include "sd-bus.h"
-#include "sd-netlink.h"
-
-#include "af-list.h"
-#include "alloc-util.h"
-#include "bus-error.h"
-#include "bus-util.h"
-#include "escape.h"
-#include "gcrypt-util.h"
-#include "in-addr-util.h"
-#include "netlink-util.h"
-#include "pager.h"
-#include "parse-util.h"
-#include "resolved-def.h"
-#include "resolved-dns-packet.h"
-#include "strv.h"
-#include "terminal-util.h"
-
-#define DNS_CALL_TIMEOUT_USEC (45*USEC_PER_SEC)
-
-static int arg_family = AF_UNSPEC;
-static int arg_ifindex = 0;
-static uint16_t arg_type = 0;
-static uint16_t arg_class = 0;
-static bool arg_legend = true;
-static uint64_t arg_flags = 0;
-static bool arg_no_pager = false;
-
-typedef enum ServiceFamily {
- SERVICE_FAMILY_TCP,
- SERVICE_FAMILY_UDP,
- SERVICE_FAMILY_SCTP,
- _SERVICE_FAMILY_INVALID = -1,
-} ServiceFamily;
-static ServiceFamily arg_service_family = SERVICE_FAMILY_TCP;
-
-typedef enum RawType {
- RAW_NONE,
- RAW_PAYLOAD,
- RAW_PACKET,
-} RawType;
-static RawType arg_raw = RAW_NONE;
-
-static enum {
- MODE_RESOLVE_HOST,
- MODE_RESOLVE_RECORD,
- MODE_RESOLVE_SERVICE,
- MODE_RESOLVE_OPENPGP,
- MODE_RESOLVE_TLSA,
- MODE_STATISTICS,
- MODE_RESET_STATISTICS,
- MODE_FLUSH_CACHES,
- MODE_STATUS,
-} arg_mode = MODE_RESOLVE_HOST;
-
-static ServiceFamily service_family_from_string(const char *s) {
- if (s == NULL || streq(s, "tcp"))
- return SERVICE_FAMILY_TCP;
- if (streq(s, "udp"))
- return SERVICE_FAMILY_UDP;
- if (streq(s, "sctp"))
- return SERVICE_FAMILY_SCTP;
- return _SERVICE_FAMILY_INVALID;
-}
-
-static const char* service_family_to_string(ServiceFamily service) {
- switch(service) {
- case SERVICE_FAMILY_TCP:
- return "_tcp";
- case SERVICE_FAMILY_UDP:
- return "_udp";
- case SERVICE_FAMILY_SCTP:
- return "_sctp";
- default:
- assert_not_reached("invalid service");
- }
-}
-
-static void print_source(uint64_t flags, usec_t rtt) {
- char rtt_str[FORMAT_TIMESTAMP_MAX];
-
- if (!arg_legend)
- return;
-
- if (flags == 0)
- return;
-
- fputs("\n-- Information acquired via", stdout);
-
- if (flags != 0)
- printf(" protocol%s%s%s%s%s",
- flags & SD_RESOLVED_DNS ? " DNS" :"",
- flags & SD_RESOLVED_LLMNR_IPV4 ? " LLMNR/IPv4" : "",
- flags & SD_RESOLVED_LLMNR_IPV6 ? " LLMNR/IPv6" : "",
- flags & SD_RESOLVED_MDNS_IPV4 ? "mDNS/IPv4" : "",
- flags & SD_RESOLVED_MDNS_IPV6 ? "mDNS/IPv6" : "");
-
- assert_se(format_timespan(rtt_str, sizeof(rtt_str), rtt, 100));
-
- printf(" in %s", rtt_str);
-
- fputc('.', stdout);
- fputc('\n', stdout);
-
- printf("-- Data is authenticated: %s\n", yes_no(flags & SD_RESOLVED_AUTHENTICATED));
-}
-
-static int resolve_host(sd_bus *bus, const char *name) {
-
- _cleanup_(sd_bus_message_unrefp) sd_bus_message *req = NULL, *reply = NULL;
- _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
- const char *canonical = NULL;
- char ifname[IF_NAMESIZE] = "";
- unsigned c = 0;
- int r;
- uint64_t flags;
- usec_t ts;
-
- assert(name);
-
- if (arg_ifindex > 0 && !if_indextoname(arg_ifindex, ifname))
- return log_error_errno(errno, "Failed to resolve interface name for index %i: %m", arg_ifindex);
-
- log_debug("Resolving %s (family %s, interface %s).", name, af_to_name(arg_family) ?: "*", isempty(ifname) ? "*" : ifname);
-
- r = sd_bus_message_new_method_call(
- bus,
- &req,
- "org.freedesktop.resolve1",
- "/org/freedesktop/resolve1",
- "org.freedesktop.resolve1.Manager",
- "ResolveHostname");
- if (r < 0)
- return bus_log_create_error(r);
-
- r = sd_bus_message_append(req, "isit", arg_ifindex, name, arg_family, arg_flags);
- if (r < 0)
- return bus_log_create_error(r);
-
- ts = now(CLOCK_MONOTONIC);
-
- r = sd_bus_call(bus, req, DNS_CALL_TIMEOUT_USEC, &error, &reply);
- if (r < 0)
- return log_error_errno(r, "%s: resolve call failed: %s", name, bus_error_message(&error, r));
-
- ts = now(CLOCK_MONOTONIC) - ts;
-
- r = sd_bus_message_enter_container(reply, 'a', "(iiay)");
- if (r < 0)
- return bus_log_parse_error(r);
-
- while ((r = sd_bus_message_enter_container(reply, 'r', "iiay")) > 0) {
- _cleanup_free_ char *pretty = NULL;
- int ifindex, family;
- const void *a;
- size_t sz;
-
- assert_cc(sizeof(int) == sizeof(int32_t));
-
- r = sd_bus_message_read(reply, "ii", &ifindex, &family);
- if (r < 0)
- return bus_log_parse_error(r);
-
- r = sd_bus_message_read_array(reply, 'y', &a, &sz);
- if (r < 0)
- return bus_log_parse_error(r);
-
- r = sd_bus_message_exit_container(reply);
- if (r < 0)
- return bus_log_parse_error(r);
-
- if (!IN_SET(family, AF_INET, AF_INET6)) {
- log_debug("%s: skipping entry with family %d (%s)", name, family, af_to_name(family) ?: "unknown");
- continue;
- }
-
- if (sz != FAMILY_ADDRESS_SIZE(family)) {
- log_error("%s: systemd-resolved returned address of invalid size %zu for family %s", name, sz, af_to_name(family) ?: "unknown");
- return -EINVAL;
- }
-
- ifname[0] = 0;
- if (ifindex > 0 && !if_indextoname(ifindex, ifname))
- log_warning_errno(errno, "Failed to resolve interface name for index %i: %m", ifindex);
-
- r = in_addr_ifindex_to_string(family, a, ifindex, &pretty);
- if (r < 0)
- return log_error_errno(r, "Failed to print address for %s: %m", name);
-
- printf("%*s%s %s%s%s\n",
- (int) strlen(name), c == 0 ? name : "", c == 0 ? ":" : " ",
- pretty,
- isempty(ifname) ? "" : "%", ifname);
-
- c++;
- }
- if (r < 0)
- return bus_log_parse_error(r);
-
- r = sd_bus_message_exit_container(reply);
- if (r < 0)
- return bus_log_parse_error(r);
-
- r = sd_bus_message_read(reply, "st", &canonical, &flags);
- if (r < 0)
- return bus_log_parse_error(r);
-
- if (!streq(name, canonical))
- printf("%*s%s (%s)\n",
- (int) strlen(name), c == 0 ? name : "", c == 0 ? ":" : " ",
- canonical);
-
- if (c == 0) {
- log_error("%s: no addresses found", name);
- return -ESRCH;
- }
-
- print_source(flags, ts);
-
- return 0;
-}
-
-static int resolve_address(sd_bus *bus, int family, const union in_addr_union *address, int ifindex) {
- _cleanup_(sd_bus_message_unrefp) sd_bus_message *req = NULL, *reply = NULL;
- _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
- _cleanup_free_ char *pretty = NULL;
- char ifname[IF_NAMESIZE] = "";
- uint64_t flags;
- unsigned c = 0;
- usec_t ts;
- int r;
-
- assert(bus);
- assert(IN_SET(family, AF_INET, AF_INET6));
- assert(address);
-
- if (ifindex <= 0)
- ifindex = arg_ifindex;
-
- r = in_addr_ifindex_to_string(family, address, ifindex, &pretty);
- if (r < 0)
- return log_oom();
-
- if (ifindex > 0 && !if_indextoname(ifindex, ifname))
- return log_error_errno(errno, "Failed to resolve interface name for index %i: %m", ifindex);
-
- log_debug("Resolving %s%s%s.", pretty, isempty(ifname) ? "" : "%", ifname);
-
- r = sd_bus_message_new_method_call(
- bus,
- &req,
- "org.freedesktop.resolve1",
- "/org/freedesktop/resolve1",
- "org.freedesktop.resolve1.Manager",
- "ResolveAddress");
- if (r < 0)
- return bus_log_create_error(r);
-
- r = sd_bus_message_append(req, "ii", ifindex, family);
- if (r < 0)
- return bus_log_create_error(r);
-
- r = sd_bus_message_append_array(req, 'y', address, FAMILY_ADDRESS_SIZE(family));
- if (r < 0)
- return bus_log_create_error(r);
-
- r = sd_bus_message_append(req, "t", arg_flags);
- if (r < 0)
- return bus_log_create_error(r);
-
- ts = now(CLOCK_MONOTONIC);
-
- r = sd_bus_call(bus, req, DNS_CALL_TIMEOUT_USEC, &error, &reply);
- if (r < 0) {
- log_error("%s: resolve call failed: %s", pretty, bus_error_message(&error, r));
- return r;
- }
-
- ts = now(CLOCK_MONOTONIC) - ts;
-
- r = sd_bus_message_enter_container(reply, 'a', "(is)");
- if (r < 0)
- return bus_log_create_error(r);
-
- while ((r = sd_bus_message_enter_container(reply, 'r', "is")) > 0) {
- const char *n;
-
- assert_cc(sizeof(int) == sizeof(int32_t));
-
- r = sd_bus_message_read(reply, "is", &ifindex, &n);
- if (r < 0)
- return r;
-
- r = sd_bus_message_exit_container(reply);
- if (r < 0)
- return r;
-
- ifname[0] = 0;
- if (ifindex > 0 && !if_indextoname(ifindex, ifname))
- log_warning_errno(errno, "Failed to resolve interface name for index %i: %m", ifindex);
-
- printf("%*s%*s%*s%s %s\n",
- (int) strlen(pretty), c == 0 ? pretty : "",
- isempty(ifname) ? 0 : 1, c > 0 || isempty(ifname) ? "" : "%",
- (int) strlen(ifname), c == 0 ? ifname : "",
- c == 0 ? ":" : " ",
- n);
-
- c++;
- }
- if (r < 0)
- return bus_log_parse_error(r);
-
- r = sd_bus_message_exit_container(reply);
- if (r < 0)
- return bus_log_parse_error(r);
-
- r = sd_bus_message_read(reply, "t", &flags);
- if (r < 0)
- return bus_log_parse_error(r);
-
- if (c == 0) {
- log_error("%s: no names found", pretty);
- return -ESRCH;
- }
-
- print_source(flags, ts);
-
- return 0;
-}
-
-static int output_rr_packet(const void *d, size_t l, int ifindex) {
- _cleanup_(dns_resource_record_unrefp) DnsResourceRecord *rr = NULL;
- _cleanup_(dns_packet_unrefp) DnsPacket *p = NULL;
- int r;
- char ifname[IF_NAMESIZE] = "";
-
- r = dns_packet_new(&p, DNS_PROTOCOL_DNS, 0);
- if (r < 0)
- return log_oom();
-
- p->refuse_compression = true;
-
- r = dns_packet_append_blob(p, d, l, NULL);
- if (r < 0)
- return log_oom();
-
- r = dns_packet_read_rr(p, &rr, NULL, NULL);
- if (r < 0)
- return log_error_errno(r, "Failed to parse RR: %m");
-
- if (arg_raw == RAW_PAYLOAD) {
- void *data;
- ssize_t k;
-
- k = dns_resource_record_payload(rr, &data);
- if (k < 0)
- return log_error_errno(k, "Cannot dump RR: %m");
- fwrite(data, 1, k, stdout);
- } else {
- const char *s;
-
- s = dns_resource_record_to_string(rr);
- if (!s)
- return log_oom();
-
- if (ifindex > 0 && !if_indextoname(ifindex, ifname))
- log_warning_errno(errno, "Failed to resolve interface name for index %i: %m", ifindex);
-
- printf("%s%s%s\n", s, isempty(ifname) ? "" : " # interface ", ifname);
- }
-
- return 0;
-}
-
-static int resolve_record(sd_bus *bus, const char *name, uint16_t class, uint16_t type, bool warn_missing) {
- _cleanup_(sd_bus_message_unrefp) sd_bus_message *req = NULL, *reply = NULL;
- _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
- char ifname[IF_NAMESIZE] = "";
- unsigned n = 0;
- uint64_t flags;
- int r;
- usec_t ts;
- bool needs_authentication = false;
-
- assert(name);
-
- if (arg_ifindex > 0 && !if_indextoname(arg_ifindex, ifname))
- return log_error_errno(errno, "Failed to resolve interface name for index %i: %m", arg_ifindex);
-
- log_debug("Resolving %s %s %s (interface %s).", name, dns_class_to_string(class), dns_type_to_string(type), isempty(ifname) ? "*" : ifname);
-
- r = sd_bus_message_new_method_call(
- bus,
- &req,
- "org.freedesktop.resolve1",
- "/org/freedesktop/resolve1",
- "org.freedesktop.resolve1.Manager",
- "ResolveRecord");
- if (r < 0)
- return bus_log_create_error(r);
-
- r = sd_bus_message_append(req, "isqqt", arg_ifindex, name, class, type, arg_flags);
- if (r < 0)
- return bus_log_create_error(r);
-
- ts = now(CLOCK_MONOTONIC);
-
- r = sd_bus_call(bus, req, DNS_CALL_TIMEOUT_USEC, &error, &reply);
- if (r < 0) {
- if (warn_missing || r != -ENXIO)
- log_error("%s: resolve call failed: %s", name, bus_error_message(&error, r));
- return r;
- }
-
- ts = now(CLOCK_MONOTONIC) - ts;
-
- r = sd_bus_message_enter_container(reply, 'a', "(iqqay)");
- if (r < 0)
- return bus_log_parse_error(r);
-
- while ((r = sd_bus_message_enter_container(reply, 'r', "iqqay")) > 0) {
- uint16_t c, t;
- int ifindex;
- const void *d;
- size_t l;
-
- assert_cc(sizeof(int) == sizeof(int32_t));
-
- r = sd_bus_message_read(reply, "iqq", &ifindex, &c, &t);
- if (r < 0)
- return bus_log_parse_error(r);
-
- r = sd_bus_message_read_array(reply, 'y', &d, &l);
- if (r < 0)
- return bus_log_parse_error(r);
-
- r = sd_bus_message_exit_container(reply);
- if (r < 0)
- return bus_log_parse_error(r);
-
- if (arg_raw == RAW_PACKET) {
- uint64_t u64 = htole64(l);
-
- fwrite(&u64, sizeof(u64), 1, stdout);
- fwrite(d, 1, l, stdout);
- } else {
- r = output_rr_packet(d, l, ifindex);
- if (r < 0)
- return r;
- }
-
- if (dns_type_needs_authentication(t))
- needs_authentication = true;
-
- n++;
- }
- if (r < 0)
- return bus_log_parse_error(r);
-
- r = sd_bus_message_exit_container(reply);
- if (r < 0)
- return bus_log_parse_error(r);
-
- r = sd_bus_message_read(reply, "t", &flags);
- if (r < 0)
- return bus_log_parse_error(r);
-
- if (n == 0) {
- if (warn_missing)
- log_error("%s: no records found", name);
- return -ESRCH;
- }
-
- print_source(flags, ts);
-
- if ((flags & SD_RESOLVED_AUTHENTICATED) == 0 && needs_authentication) {
- fflush(stdout);
-
- fprintf(stderr, "\n%s"
- "WARNING: The resources shown contain cryptographic key data which could not be\n"
- " authenticated. It is not suitable to authenticate any communication.\n"
- " This is usually indication that DNSSEC authentication was not enabled\n"
- " or is not available for the selected protocol or DNS servers.%s\n",
- ansi_highlight_red(),
- ansi_normal());
- }
-
- return 0;
-}
-
-static int resolve_rfc4501(sd_bus *bus, const char *name) {
- uint16_t type = 0, class = 0;
- const char *p, *q, *n;
- int r;
-
- assert(bus);
- assert(name);
- assert(startswith(name, "dns:"));
-
- /* Parse RFC 4501 dns: URIs */
-
- p = name + 4;
-
- if (p[0] == '/') {
- const char *e;
-
- if (p[1] != '/')
- goto invalid;
-
- e = strchr(p + 2, '/');
- if (!e)
- goto invalid;
-
- if (e != p + 2)
- log_warning("DNS authority specification not supported; ignoring specified authority.");
-
- p = e + 1;
- }
-
- q = strchr(p, '?');
- if (q) {
- n = strndupa(p, q - p);
- q++;
-
- for (;;) {
- const char *f;
-
- f = startswith_no_case(q, "class=");
- if (f) {
- _cleanup_free_ char *t = NULL;
- const char *e;
-
- if (class != 0) {
- log_error("DNS class specified twice.");
- return -EINVAL;
- }
-
- e = strchrnul(f, ';');
- t = strndup(f, e - f);
- if (!t)
- return log_oom();
-
- r = dns_class_from_string(t);
- if (r < 0) {
- log_error("Unknown DNS class %s.", t);
- return -EINVAL;
- }
-
- class = r;
-
- if (*e == ';') {
- q = e + 1;
- continue;
- }
-
- break;
- }
-
- f = startswith_no_case(q, "type=");
- if (f) {
- _cleanup_free_ char *t = NULL;
- const char *e;
-
- if (type != 0) {
- log_error("DNS type specified twice.");
- return -EINVAL;
- }
-
- e = strchrnul(f, ';');
- t = strndup(f, e - f);
- if (!t)
- return log_oom();
-
- r = dns_type_from_string(t);
- if (r < 0) {
- log_error("Unknown DNS type %s.", t);
- return -EINVAL;
- }
-
- type = r;
-
- if (*e == ';') {
- q = e + 1;
- continue;
- }
-
- break;
- }
-
- goto invalid;
- }
- } else
- n = p;
-
- if (class == 0)
- class = arg_class ?: DNS_CLASS_IN;
- if (type == 0)
- type = arg_type ?: DNS_TYPE_A;
-
- return resolve_record(bus, n, class, type, true);
-
-invalid:
- log_error("Invalid DNS URI: %s", name);
- return -EINVAL;
-}
-
-static int resolve_service(sd_bus *bus, const char *name, const char *type, const char *domain) {
- const char *canonical_name, *canonical_type, *canonical_domain;
- _cleanup_(sd_bus_message_unrefp) sd_bus_message *req = NULL, *reply = NULL;
- _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
- char ifname[IF_NAMESIZE] = "";
- size_t indent, sz;
- uint64_t flags;
- const char *p;
- unsigned c;
- usec_t ts;
- int r;
-
- assert(bus);
- assert(domain);
-
- name = empty_to_null(name);
- type = empty_to_null(type);
-
- if (arg_ifindex > 0 && !if_indextoname(arg_ifindex, ifname))
- return log_error_errno(errno, "Failed to resolve interface name for index %i: %m", arg_ifindex);
-
- if (name)
- log_debug("Resolving service \"%s\" of type %s in %s (family %s, interface %s).", name, type, domain, af_to_name(arg_family) ?: "*", isempty(ifname) ? "*" : ifname);
- else if (type)
- log_debug("Resolving service type %s of %s (family %s, interface %s).", type, domain, af_to_name(arg_family) ?: "*", isempty(ifname) ? "*" : ifname);
- else
- log_debug("Resolving service type %s (family %s, interface %s).", domain, af_to_name(arg_family) ?: "*", isempty(ifname) ? "*" : ifname);
-
- r = sd_bus_message_new_method_call(
- bus,
- &req,
- "org.freedesktop.resolve1",
- "/org/freedesktop/resolve1",
- "org.freedesktop.resolve1.Manager",
- "ResolveService");
- if (r < 0)
- return bus_log_create_error(r);
-
- r = sd_bus_message_append(req, "isssit", arg_ifindex, name, type, domain, arg_family, arg_flags);
- if (r < 0)
- return bus_log_create_error(r);
-
- ts = now(CLOCK_MONOTONIC);
-
- r = sd_bus_call(bus, req, DNS_CALL_TIMEOUT_USEC, &error, &reply);
- if (r < 0)
- return log_error_errno(r, "Resolve call failed: %s", bus_error_message(&error, r));
-
- ts = now(CLOCK_MONOTONIC) - ts;
-
- r = sd_bus_message_enter_container(reply, 'a', "(qqqsa(iiay)s)");
- if (r < 0)
- return bus_log_parse_error(r);
-
- indent =
- (name ? strlen(name) + 1 : 0) +
- (type ? strlen(type) + 1 : 0) +
- strlen(domain) + 2;
-
- c = 0;
- while ((r = sd_bus_message_enter_container(reply, 'r', "qqqsa(iiay)s")) > 0) {
- uint16_t priority, weight, port;
- const char *hostname, *canonical;
-
- r = sd_bus_message_read(reply, "qqqs", &priority, &weight, &port, &hostname);
- if (r < 0)
- return bus_log_parse_error(r);
-
- if (name)
- printf("%*s%s", (int) strlen(name), c == 0 ? name : "", c == 0 ? "/" : " ");
- if (type)
- printf("%*s%s", (int) strlen(type), c == 0 ? type : "", c == 0 ? "/" : " ");
-
- printf("%*s%s %s:%u [priority=%u, weight=%u]\n",
- (int) strlen(domain), c == 0 ? domain : "",
- c == 0 ? ":" : " ",
- hostname, port,
- priority, weight);
-
- r = sd_bus_message_enter_container(reply, 'a', "(iiay)");
- if (r < 0)
- return bus_log_parse_error(r);
-
- while ((r = sd_bus_message_enter_container(reply, 'r', "iiay")) > 0) {
- _cleanup_free_ char *pretty = NULL;
- int ifindex, family;
- const void *a;
-
- assert_cc(sizeof(int) == sizeof(int32_t));
-
- r = sd_bus_message_read(reply, "ii", &ifindex, &family);
- if (r < 0)
- return bus_log_parse_error(r);
-
- r = sd_bus_message_read_array(reply, 'y', &a, &sz);
- if (r < 0)
- return bus_log_parse_error(r);
-
- r = sd_bus_message_exit_container(reply);
- if (r < 0)
- return bus_log_parse_error(r);
-
- if (!IN_SET(family, AF_INET, AF_INET6)) {
- log_debug("%s: skipping entry with family %d (%s)", name, family, af_to_name(family) ?: "unknown");
- continue;
- }
-
- if (sz != FAMILY_ADDRESS_SIZE(family)) {
- log_error("%s: systemd-resolved returned address of invalid size %zu for family %s", name, sz, af_to_name(family) ?: "unknown");
- return -EINVAL;
- }
-
- ifname[0] = 0;
- if (ifindex > 0 && !if_indextoname(ifindex, ifname))
- log_warning_errno(errno, "Failed to resolve interface name for index %i: %m", ifindex);
-
- r = in_addr_to_string(family, a, &pretty);
- if (r < 0)
- return log_error_errno(r, "Failed to print address for %s: %m", name);
-
- printf("%*s%s%s%s\n", (int) indent, "", pretty, isempty(ifname) ? "" : "%s", ifname);
- }
- if (r < 0)
- return bus_log_parse_error(r);
-
- r = sd_bus_message_exit_container(reply);
- if (r < 0)
- return bus_log_parse_error(r);
-
- r = sd_bus_message_read(reply, "s", &canonical);
- if (r < 0)
- return bus_log_parse_error(r);
-
- if (!streq(hostname, canonical))
- printf("%*s(%s)\n", (int) indent, "", canonical);
-
- r = sd_bus_message_exit_container(reply);
- if (r < 0)
- return bus_log_parse_error(r);
-
- c++;
- }
- if (r < 0)
- return bus_log_parse_error(r);
-
- r = sd_bus_message_exit_container(reply);
- if (r < 0)
- return bus_log_parse_error(r);
-
- r = sd_bus_message_enter_container(reply, 'a', "ay");
- if (r < 0)
- return bus_log_parse_error(r);
-
- while ((r = sd_bus_message_read_array(reply, 'y', (const void**) &p, &sz)) > 0) {
- _cleanup_free_ char *escaped = NULL;
-
- escaped = cescape_length(p, sz);
- if (!escaped)
- return log_oom();
-
- printf("%*s%s\n", (int) indent, "", escaped);
- }
- if (r < 0)
- return bus_log_parse_error(r);
-
- r = sd_bus_message_exit_container(reply);
- if (r < 0)
- return bus_log_parse_error(r);
-
- r = sd_bus_message_read(reply, "ssst", &canonical_name, &canonical_type, &canonical_domain, &flags);
- if (r < 0)
- return bus_log_parse_error(r);
-
- canonical_name = empty_to_null(canonical_name);
- canonical_type = empty_to_null(canonical_type);
-
- if (!streq_ptr(name, canonical_name) ||
- !streq_ptr(type, canonical_type) ||
- !streq_ptr(domain, canonical_domain)) {
-
- printf("%*s(", (int) indent, "");
-
- if (canonical_name)
- printf("%s/", canonical_name);
- if (canonical_type)
- printf("%s/", canonical_type);
-
- printf("%s)\n", canonical_domain);
- }
-
- print_source(flags, ts);
-
- return 0;
-}
-
-static int resolve_openpgp(sd_bus *bus, const char *address) {
- const char *domain, *full;
- int r;
- _cleanup_free_ char *hashed = NULL;
-
- assert(bus);
- assert(address);
-
- domain = strrchr(address, '@');
- if (!domain) {
- log_error("Address does not contain '@': \"%s\"", address);
- return -EINVAL;
- } else if (domain == address || domain[1] == '\0') {
- log_error("Address starts or ends with '@': \"%s\"", address);
- return -EINVAL;
- }
- domain++;
-
- r = string_hashsum_sha256(address, domain - 1 - address, &hashed);
- if (r < 0)
- return log_error_errno(r, "Hashing failed: %m");
-
- strshorten(hashed, 56);
-
- full = strjoina(hashed, "._openpgpkey.", domain);
- log_debug("Looking up \"%s\".", full);
-
- r = resolve_record(bus, full,
- arg_class ?: DNS_CLASS_IN,
- arg_type ?: DNS_TYPE_OPENPGPKEY, false);
-
- if (IN_SET(r, -ENXIO, -ESRCH)) { /* NXDOMAIN or NODATA? */
- hashed = NULL;
- r = string_hashsum_sha224(address, domain - 1 - address, &hashed);
- if (r < 0)
- return log_error_errno(r, "Hashing failed: %m");
-
- full = strjoina(hashed, "._openpgpkey.", domain);
- log_debug("Looking up \"%s\".", full);
-
- return resolve_record(bus, full,
- arg_class ?: DNS_CLASS_IN,
- arg_type ?: DNS_TYPE_OPENPGPKEY, true);
- }
-
- return r;
-}
-
-static int resolve_tlsa(sd_bus *bus, const char *address) {
- const char *port;
- uint16_t port_num = 443;
- _cleanup_free_ char *full = NULL;
- int r;
-
- assert(bus);
- assert(address);
-
- port = strrchr(address, ':');
- if (port) {
- r = safe_atou16(port + 1, &port_num);
- if (r < 0 || port_num == 0)
- return log_error_errno(r, "Invalid port \"%s\".", port + 1);
-
- address = strndupa(address, port - address);
- }
-
- r = asprintf(&full, "_%u.%s.%s",
- port_num,
- service_family_to_string(arg_service_family),
- address);
- if (r < 0)
- return log_oom();
-
- log_debug("Looking up \"%s\".", full);
-
- return resolve_record(bus, full,
- arg_class ?: DNS_CLASS_IN,
- arg_type ?: DNS_TYPE_TLSA, true);
-}
-
-static int show_statistics(sd_bus *bus) {
- _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
- _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
- uint64_t n_current_transactions, n_total_transactions,
- cache_size, n_cache_hit, n_cache_miss,
- n_dnssec_secure, n_dnssec_insecure, n_dnssec_bogus, n_dnssec_indeterminate;
- int r, dnssec_supported;
-
- assert(bus);
-
- r = sd_bus_get_property_trivial(bus,
- "org.freedesktop.resolve1",
- "/org/freedesktop/resolve1",
- "org.freedesktop.resolve1.Manager",
- "DNSSECSupported",
- &error,
- 'b',
- &dnssec_supported);
- if (r < 0)
- return log_error_errno(r, "Failed to get DNSSEC supported state: %s", bus_error_message(&error, r));
-
- printf("DNSSEC supported by current servers: %s%s%s\n\n",
- ansi_highlight(),
- yes_no(dnssec_supported),
- ansi_normal());
-
- r = sd_bus_get_property(bus,
- "org.freedesktop.resolve1",
- "/org/freedesktop/resolve1",
- "org.freedesktop.resolve1.Manager",
- "TransactionStatistics",
- &error,
- &reply,
- "(tt)");
- if (r < 0)
- return log_error_errno(r, "Failed to get transaction statistics: %s", bus_error_message(&error, r));
-
- r = sd_bus_message_read(reply, "(tt)",
- &n_current_transactions,
- &n_total_transactions);
- if (r < 0)
- return bus_log_parse_error(r);
-
- printf("%sTransactions%s\n"
- "Current Transactions: %" PRIu64 "\n"
- " Total Transactions: %" PRIu64 "\n",
- ansi_highlight(),
- ansi_normal(),
- n_current_transactions,
- n_total_transactions);
-
- reply = sd_bus_message_unref(reply);
-
- r = sd_bus_get_property(bus,
- "org.freedesktop.resolve1",
- "/org/freedesktop/resolve1",
- "org.freedesktop.resolve1.Manager",
- "CacheStatistics",
- &error,
- &reply,
- "(ttt)");
- if (r < 0)
- return log_error_errno(r, "Failed to get cache statistics: %s", bus_error_message(&error, r));
-
- r = sd_bus_message_read(reply, "(ttt)",
- &cache_size,
- &n_cache_hit,
- &n_cache_miss);
- if (r < 0)
- return bus_log_parse_error(r);
-
- printf("\n%sCache%s\n"
- " Current Cache Size: %" PRIu64 "\n"
- " Cache Hits: %" PRIu64 "\n"
- " Cache Misses: %" PRIu64 "\n",
- ansi_highlight(),
- ansi_normal(),
- cache_size,
- n_cache_hit,
- n_cache_miss);
-
- reply = sd_bus_message_unref(reply);
-
- r = sd_bus_get_property(bus,
- "org.freedesktop.resolve1",
- "/org/freedesktop/resolve1",
- "org.freedesktop.resolve1.Manager",
- "DNSSECStatistics",
- &error,
- &reply,
- "(tttt)");
- if (r < 0)
- return log_error_errno(r, "Failed to get DNSSEC statistics: %s", bus_error_message(&error, r));
-
- r = sd_bus_message_read(reply, "(tttt)",
- &n_dnssec_secure,
- &n_dnssec_insecure,
- &n_dnssec_bogus,
- &n_dnssec_indeterminate);
- if (r < 0)
- return bus_log_parse_error(r);
-
- printf("\n%sDNSSEC Verdicts%s\n"
- " Secure: %" PRIu64 "\n"
- " Insecure: %" PRIu64 "\n"
- " Bogus: %" PRIu64 "\n"
- " Indeterminate: %" PRIu64 "\n",
- ansi_highlight(),
- ansi_normal(),
- n_dnssec_secure,
- n_dnssec_insecure,
- n_dnssec_bogus,
- n_dnssec_indeterminate);
-
- return 0;
-}
-
-static int reset_statistics(sd_bus *bus) {
- _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
- int r;
-
- r = sd_bus_call_method(bus,
- "org.freedesktop.resolve1",
- "/org/freedesktop/resolve1",
- "org.freedesktop.resolve1.Manager",
- "ResetStatistics",
- &error,
- NULL,
- NULL);
- if (r < 0)
- return log_error_errno(r, "Failed to reset statistics: %s", bus_error_message(&error, r));
-
- return 0;
-}
-
-static int flush_caches(sd_bus *bus) {
- _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
- int r;
-
- r = sd_bus_call_method(bus,
- "org.freedesktop.resolve1",
- "/org/freedesktop/resolve1",
- "org.freedesktop.resolve1.Manager",
- "FlushCaches",
- &error,
- NULL,
- NULL);
- if (r < 0)
- return log_error_errno(r, "Failed to flush caches: %s", bus_error_message(&error, r));
-
- return 0;
-}
-
-static int map_link_dns_servers(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
- char ***l = userdata;
- int r;
-
- assert(bus);
- assert(member);
- assert(m);
- assert(l);
-
- r = sd_bus_message_enter_container(m, 'a', "(iay)");
- if (r < 0)
- return r;
-
- for (;;) {
- const void *a;
- char *pretty;
- int family;
- size_t sz;
-
- r = sd_bus_message_enter_container(m, 'r', "iay");
- if (r < 0)
- return r;
- if (r == 0)
- break;
-
- r = sd_bus_message_read(m, "i", &family);
- if (r < 0)
- return r;
-
- r = sd_bus_message_read_array(m, 'y', &a, &sz);
- if (r < 0)
- return r;
-
- r = sd_bus_message_exit_container(m);
- if (r < 0)
- return r;
-
- if (!IN_SET(family, AF_INET, AF_INET6)) {
- log_debug("Unexpected family, ignoring.");
- continue;
- }
-
- if (sz != FAMILY_ADDRESS_SIZE(family)) {
- log_debug("Address size mismatch, ignoring.");
- continue;
- }
-
- r = in_addr_to_string(family, a, &pretty);
- if (r < 0)
- return r;
-
- r = strv_consume(l, pretty);
- if (r < 0)
- return r;
- }
-
- r = sd_bus_message_exit_container(m);
- if (r < 0)
- return r;
-
- return 0;
-}
-
-static int map_link_domains(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
- char ***l = userdata;
- int r;
-
- assert(bus);
- assert(member);
- assert(m);
- assert(l);
-
- r = sd_bus_message_enter_container(m, 'a', "(sb)");
- if (r < 0)
- return r;
-
- for (;;) {
- const char *domain;
- int route_only;
- char *pretty;
-
- r = sd_bus_message_read(m, "(sb)", &domain, &route_only);
- if (r < 0)
- return r;
- if (r == 0)
- break;
-
- if (route_only)
- pretty = strappend("~", domain);
- else
- pretty = strdup(domain);
- if (!pretty)
- return -ENOMEM;
-
- r = strv_consume(l, pretty);
- if (r < 0)
- return r;
- }
-
- r = sd_bus_message_exit_container(m);
- if (r < 0)
- return r;
-
- return 0;
-}
-
-static int status_ifindex(sd_bus *bus, int ifindex, const char *name, bool *empty_line) {
-
- struct link_info {
- uint64_t scopes_mask;
- char *llmnr;
- char *mdns;
- char *dnssec;
- char **dns;
- char **domains;
- char **ntas;
- int dnssec_supported;
- } link_info = {};
-
- static const struct bus_properties_map property_map[] = {
- { "ScopesMask", "t", NULL, offsetof(struct link_info, scopes_mask) },
- { "DNS", "a(iay)", map_link_dns_servers, offsetof(struct link_info, dns) },
- { "Domains", "a(sb)", map_link_domains, offsetof(struct link_info, domains) },
- { "LLMNR", "s", NULL, offsetof(struct link_info, llmnr) },
- { "MulticastDNS", "s", NULL, offsetof(struct link_info, mdns) },
- { "DNSSEC", "s", NULL, offsetof(struct link_info, dnssec) },
- { "DNSSECNegativeTrustAnchors", "as", NULL, offsetof(struct link_info, ntas) },
- { "DNSSECSupported", "b", NULL, offsetof(struct link_info, dnssec_supported) },
- {}
- };
-
- _cleanup_free_ char *ifi = NULL, *p = NULL;
- char ifname[IF_NAMESIZE] = "";
- char **i;
- int r;
-
- assert(bus);
- assert(ifindex > 0);
- assert(empty_line);
-
- if (!name) {
- if (!if_indextoname(ifindex, ifname))
- return log_error_errno(errno, "Failed to resolve interface name for %i: %m", ifindex);
-
- name = ifname;
- }
-
- if (asprintf(&ifi, "%i", ifindex) < 0)
- return log_oom();
-
- r = sd_bus_path_encode("/org/freedesktop/resolve1/link", ifi, &p);
- if (r < 0)
- return log_oom();
-
- r = bus_map_all_properties(bus,
- "org.freedesktop.resolve1",
- p,
- property_map,
- &link_info);
- if (r < 0) {
- log_error_errno(r, "Failed to get link data for %i: %m", ifindex);
- goto finish;
- }
-
- pager_open(arg_no_pager, false);
-
- if (*empty_line)
- fputc('\n', stdout);
-
- printf("%sLink %i (%s)%s\n",
- ansi_highlight(), ifindex, name, ansi_normal());
-
- if (link_info.scopes_mask == 0)
- printf(" Current Scopes: none\n");
- else
- printf(" Current Scopes:%s%s%s%s%s\n",
- link_info.scopes_mask & SD_RESOLVED_DNS ? " DNS" : "",
- link_info.scopes_mask & SD_RESOLVED_LLMNR_IPV4 ? " LLMNR/IPv4" : "",
- link_info.scopes_mask & SD_RESOLVED_LLMNR_IPV6 ? " LLMNR/IPv6" : "",
- link_info.scopes_mask & SD_RESOLVED_MDNS_IPV4 ? " mDNS/IPv4" : "",
- link_info.scopes_mask & SD_RESOLVED_MDNS_IPV6 ? " mDNS/IPv6" : "");
-
- printf(" LLMNR setting: %s\n"
- "MulticastDNS setting: %s\n"
- " DNSSEC setting: %s\n"
- " DNSSEC supported: %s\n",
- strna(link_info.llmnr),
- strna(link_info.mdns),
- strna(link_info.dnssec),
- yes_no(link_info.dnssec_supported));
-
- STRV_FOREACH(i, link_info.dns) {
- printf(" %s %s\n",
- i == link_info.dns ? "DNS Servers:" : " ",
- *i);
- }
-
- STRV_FOREACH(i, link_info.domains) {
- printf(" %s %s\n",
- i == link_info.domains ? "DNS Domain:" : " ",
- *i);
- }
-
- STRV_FOREACH(i, link_info.ntas) {
- printf(" %s %s\n",
- i == link_info.ntas ? "DNSSEC NTA:" : " ",
- *i);
- }
-
- *empty_line = true;
-
- r = 0;
-
-finish:
- strv_free(link_info.dns);
- strv_free(link_info.domains);
- free(link_info.llmnr);
- free(link_info.mdns);
- free(link_info.dnssec);
- strv_free(link_info.ntas);
- return r;
-}
-
-static int map_global_dns_servers(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
- char ***l = userdata;
- int r;
-
- assert(bus);
- assert(member);
- assert(m);
- assert(l);
-
- r = sd_bus_message_enter_container(m, 'a', "(iiay)");
- if (r < 0)
- return r;
-
- for (;;) {
- const void *a;
- char *pretty;
- int family, ifindex;
- size_t sz;
-
- r = sd_bus_message_enter_container(m, 'r', "iiay");
- if (r < 0)
- return r;
- if (r == 0)
- break;
-
- r = sd_bus_message_read(m, "ii", &ifindex, &family);
- if (r < 0)
- return r;
-
- r = sd_bus_message_read_array(m, 'y', &a, &sz);
- if (r < 0)
- return r;
-
- r = sd_bus_message_exit_container(m);
- if (r < 0)
- return r;
-
- if (ifindex != 0) /* only show the global ones here */
- continue;
-
- if (!IN_SET(family, AF_INET, AF_INET6)) {
- log_debug("Unexpected family, ignoring.");
- continue;
- }
-
- if (sz != FAMILY_ADDRESS_SIZE(family)) {
- log_debug("Address size mismatch, ignoring.");
- continue;
- }
-
- r = in_addr_to_string(family, a, &pretty);
- if (r < 0)
- return r;
-
- r = strv_consume(l, pretty);
- if (r < 0)
- return r;
- }
-
- r = sd_bus_message_exit_container(m);
- if (r < 0)
- return r;
-
- return 0;
-}
-
-static int map_global_domains(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
- char ***l = userdata;
- int r;
-
- assert(bus);
- assert(member);
- assert(m);
- assert(l);
-
- r = sd_bus_message_enter_container(m, 'a', "(isb)");
- if (r < 0)
- return r;
-
- for (;;) {
- const char *domain;
- int route_only, ifindex;
- char *pretty;
-
- r = sd_bus_message_read(m, "(isb)", &ifindex, &domain, &route_only);
- if (r < 0)
- return r;
- if (r == 0)
- break;
-
- if (ifindex != 0) /* only show the global ones here */
- continue;
-
- if (route_only)
- pretty = strappend("~", domain);
- else
- pretty = strdup(domain);
- if (!pretty)
- return -ENOMEM;
-
- r = strv_consume(l, pretty);
- if (r < 0)
- return r;
- }
-
- r = sd_bus_message_exit_container(m);
- if (r < 0)
- return r;
-
- return 0;
-}
-
-static int status_global(sd_bus *bus, bool *empty_line) {
-
- struct global_info {
- char **dns;
- char **domains;
- char **ntas;
- } global_info = {};
-
- static const struct bus_properties_map property_map[] = {
- { "DNS", "a(iiay)", map_global_dns_servers, offsetof(struct global_info, dns) },
- { "Domains", "a(isb)", map_global_domains, offsetof(struct global_info, domains) },
- { "DNSSECNegativeTrustAnchors", "as", NULL, offsetof(struct global_info, ntas) },
- {}
- };
-
- char **i;
- int r;
-
- assert(bus);
- assert(empty_line);
-
- r = bus_map_all_properties(bus,
- "org.freedesktop.resolve1",
- "/org/freedesktop/resolve1",
- property_map,
- &global_info);
- if (r < 0) {
- log_error_errno(r, "Failed to get global data: %m");
- goto finish;
- }
-
- if (strv_isempty(global_info.dns) && strv_isempty(global_info.domains) && strv_isempty(global_info.ntas)) {
- r = 0;
- goto finish;
- }
-
- pager_open(arg_no_pager, false);
-
- printf("%sGlobal%s\n", ansi_highlight(), ansi_normal());
- STRV_FOREACH(i, global_info.dns) {
- printf(" %s %s\n",
- i == global_info.dns ? "DNS Servers:" : " ",
- *i);
- }
-
- STRV_FOREACH(i, global_info.domains) {
- printf(" %s %s\n",
- i == global_info.domains ? "DNS Domain:" : " ",
- *i);
- }
-
- strv_sort(global_info.ntas);
- STRV_FOREACH(i, global_info.ntas) {
- printf(" %s %s\n",
- i == global_info.ntas ? "DNSSEC NTA:" : " ",
- *i);
- }
-
- *empty_line = true;
-
- r = 0;
-
-finish:
- strv_free(global_info.dns);
- strv_free(global_info.domains);
- strv_free(global_info.ntas);
-
- return r;
-}
-
-static int status_all(sd_bus *bus) {
- _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL, *reply = NULL;
- _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL;
- sd_netlink_message *i;
- bool empty_line = false;
- int r;
-
- assert(bus);
-
- r = status_global(bus, &empty_line);
- if (r < 0)
- return r;
-
- r = sd_netlink_open(&rtnl);
- if (r < 0)
- return log_error_errno(r, "Failed to connect to netlink: %m");
-
- r = sd_rtnl_message_new_link(rtnl, &req, RTM_GETLINK, 0);
- if (r < 0)
- return rtnl_log_create_error(r);
-
- r = sd_netlink_message_request_dump(req, true);
- if (r < 0)
- return rtnl_log_create_error(r);
-
- r = sd_netlink_call(rtnl, req, 0, &reply);
- if (r < 0)
- return log_error_errno(r, "Failed to enumerate links: %m");
-
- r = 0;
- for (i = reply; i; i = sd_netlink_message_next(i)) {
- const char *name;
- int ifindex, q;
- uint16_t type;
-
- q = sd_netlink_message_get_type(i, &type);
- if (q < 0)
- return rtnl_log_parse_error(q);
-
- if (type != RTM_NEWLINK)
- continue;
-
- q = sd_rtnl_message_link_get_ifindex(i, &ifindex);
- if (q < 0)
- return rtnl_log_parse_error(q);
-
- if (ifindex == LOOPBACK_IFINDEX)
- continue;
-
- q = sd_netlink_message_read_string(i, IFLA_IFNAME, &name);
- if (q < 0)
- return rtnl_log_parse_error(q);
-
- q = status_ifindex(bus, ifindex, name, &empty_line);
- if (q < 0 && r >= 0)
- r = q;
- }
-
- return r;
-}
-
-static void help_protocol_types(void) {
- if (arg_legend)
- puts("Known protocol types:");
- puts("dns\nllmnr\nllmnr-ipv4\nllmnr-ipv6");
-}
-
-static void help_dns_types(void) {
- const char *t;
- int i;
-
- if (arg_legend)
- puts("Known DNS RR types:");
- for (i = 0; i < _DNS_TYPE_MAX; i++) {
- t = dns_type_to_string(i);
- if (t)
- puts(t);
- }
-}
-
-static void help_dns_classes(void) {
- const char *t;
- int i;
-
- if (arg_legend)
- puts("Known DNS RR classes:");
- for (i = 0; i < _DNS_CLASS_MAX; i++) {
- t = dns_class_to_string(i);
- if (t)
- puts(t);
- }
-}
-
-static void help(void) {
- printf("%1$s [OPTIONS...] HOSTNAME|ADDRESS...\n"
- "%1$s [OPTIONS...] --service [[NAME] TYPE] DOMAIN\n"
- "%1$s [OPTIONS...] --openpgp EMAIL@DOMAIN...\n"
- "%1$s [OPTIONS...] --statistics\n"
- "%1$s [OPTIONS...] --reset-statistics\n"
- "\n"
- "Resolve domain names, IPv4 and IPv6 addresses, DNS records, and services.\n\n"
- " -h --help Show this help\n"
- " --version Show package version\n"
- " --no-pager Do not pipe output into a pager\n"
- " -4 Resolve IPv4 addresses\n"
- " -6 Resolve IPv6 addresses\n"
- " -i --interface=INTERFACE Look on interface\n"
- " -p --protocol=PROTO|help Look via protocol\n"
- " -t --type=TYPE|help Query RR with DNS type\n"
- " -c --class=CLASS|help Query RR with DNS class\n"
- " --service Resolve service (SRV)\n"
- " --service-address=BOOL Resolve address for services (default: yes)\n"
- " --service-txt=BOOL Resolve TXT records for services (default: yes)\n"
- " --openpgp Query OpenPGP public key\n"
- " --tlsa Query TLS public key\n"
- " --cname=BOOL Follow CNAME redirects (default: yes)\n"
- " --search=BOOL Use search domains for single-label names\n"
- " (default: yes)\n"
- " --raw[=payload|packet] Dump the answer as binary data\n"
- " --legend=BOOL Print headers and additional info (default: yes)\n"
- " --statistics Show resolver statistics\n"
- " --reset-statistics Reset resolver statistics\n"
- " --status Show link and server status\n"
- " --flush-caches Flush all local DNS caches\n"
- , program_invocation_short_name);
-}
-
-static int parse_argv(int argc, char *argv[]) {
- enum {
- ARG_VERSION = 0x100,
- ARG_LEGEND,
- ARG_SERVICE,
- ARG_CNAME,
- ARG_SERVICE_ADDRESS,
- ARG_SERVICE_TXT,
- ARG_OPENPGP,
- ARG_TLSA,
- ARG_RAW,
- ARG_SEARCH,
- ARG_STATISTICS,
- ARG_RESET_STATISTICS,
- ARG_STATUS,
- ARG_FLUSH_CACHES,
- ARG_NO_PAGER,
- };
-
- static const struct option options[] = {
- { "help", no_argument, NULL, 'h' },
- { "version", no_argument, NULL, ARG_VERSION },
- { "type", required_argument, NULL, 't' },
- { "class", required_argument, NULL, 'c' },
- { "legend", required_argument, NULL, ARG_LEGEND },
- { "interface", required_argument, NULL, 'i' },
- { "protocol", required_argument, NULL, 'p' },
- { "cname", required_argument, NULL, ARG_CNAME },
- { "service", no_argument, NULL, ARG_SERVICE },
- { "service-address", required_argument, NULL, ARG_SERVICE_ADDRESS },
- { "service-txt", required_argument, NULL, ARG_SERVICE_TXT },
- { "openpgp", no_argument, NULL, ARG_OPENPGP },
- { "tlsa", optional_argument, NULL, ARG_TLSA },
- { "raw", optional_argument, NULL, ARG_RAW },
- { "search", required_argument, NULL, ARG_SEARCH },
- { "statistics", no_argument, NULL, ARG_STATISTICS, },
- { "reset-statistics", no_argument, NULL, ARG_RESET_STATISTICS },
- { "status", no_argument, NULL, ARG_STATUS },
- { "flush-caches", no_argument, NULL, ARG_FLUSH_CACHES },
- { "no-pager", no_argument, NULL, ARG_NO_PAGER },
- {}
- };
-
- int c, r;
-
- assert(argc >= 0);
- assert(argv);
-
- while ((c = getopt_long(argc, argv, "h46i:t:c:p:", options, NULL)) >= 0)
- switch(c) {
-
- case 'h':
- help();
- return 0; /* done */;
-
- case ARG_VERSION:
- return version();
-
- case '4':
- arg_family = AF_INET;
- break;
-
- case '6':
- arg_family = AF_INET6;
- break;
-
- case 'i': {
- int ifi;
-
- if (parse_ifindex(optarg, &ifi) >= 0)
- arg_ifindex = ifi;
- else {
- ifi = if_nametoindex(optarg);
- if (ifi <= 0)
- return log_error_errno(errno, "Unknown interface %s: %m", optarg);
-
- arg_ifindex = ifi;
- }
-
- break;
- }
-
- case 't':
- if (streq(optarg, "help")) {
- help_dns_types();
- return 0;
- }
-
- r = dns_type_from_string(optarg);
- if (r < 0) {
- log_error("Failed to parse RR record type %s", optarg);
- return r;
- }
- arg_type = (uint16_t) r;
- assert((int) arg_type == r);
-
- arg_mode = MODE_RESOLVE_RECORD;
- break;
-
- case 'c':
- if (streq(optarg, "help")) {
- help_dns_classes();
- return 0;
- }
-
- r = dns_class_from_string(optarg);
- if (r < 0) {
- log_error("Failed to parse RR record class %s", optarg);
- return r;
- }
- arg_class = (uint16_t) r;
- assert((int) arg_class == r);
-
- break;
-
- case ARG_LEGEND:
- r = parse_boolean(optarg);
- if (r < 0)
- return log_error_errno(r, "Failed to parse --legend= argument");
-
- arg_legend = r;
- break;
-
- case 'p':
- if (streq(optarg, "help")) {
- help_protocol_types();
- return 0;
- } else if (streq(optarg, "dns"))
- arg_flags |= SD_RESOLVED_DNS;
- else if (streq(optarg, "llmnr"))
- arg_flags |= SD_RESOLVED_LLMNR;
- else if (streq(optarg, "llmnr-ipv4"))
- arg_flags |= SD_RESOLVED_LLMNR_IPV4;
- else if (streq(optarg, "llmnr-ipv6"))
- arg_flags |= SD_RESOLVED_LLMNR_IPV6;
- else {
- log_error("Unknown protocol specifier: %s", optarg);
- return -EINVAL;
- }
-
- break;
-
- case ARG_SERVICE:
- arg_mode = MODE_RESOLVE_SERVICE;
- break;
-
- case ARG_OPENPGP:
- arg_mode = MODE_RESOLVE_OPENPGP;
- break;
-
- case ARG_TLSA:
- arg_mode = MODE_RESOLVE_TLSA;
- arg_service_family = service_family_from_string(optarg);
- if (arg_service_family < 0) {
- log_error("Unknown service family \"%s\".", optarg);
- return -EINVAL;
- }
- break;
-
- case ARG_RAW:
- if (on_tty()) {
- log_error("Refusing to write binary data to tty.");
- return -ENOTTY;
- }
-
- if (optarg == NULL || streq(optarg, "payload"))
- arg_raw = RAW_PAYLOAD;
- else if (streq(optarg, "packet"))
- arg_raw = RAW_PACKET;
- else {
- log_error("Unknown --raw specifier \"%s\".", optarg);
- return -EINVAL;
- }
-
- arg_legend = false;
- break;
-
- case ARG_CNAME:
- r = parse_boolean(optarg);
- if (r < 0)
- return log_error_errno(r, "Failed to parse --cname= argument.");
- SET_FLAG(arg_flags, SD_RESOLVED_NO_CNAME, r == 0);
- break;
-
- case ARG_SERVICE_ADDRESS:
- r = parse_boolean(optarg);
- if (r < 0)
- return log_error_errno(r, "Failed to parse --service-address= argument.");
- SET_FLAG(arg_flags, SD_RESOLVED_NO_ADDRESS, r == 0);
- break;
-
- case ARG_SERVICE_TXT:
- r = parse_boolean(optarg);
- if (r < 0)
- return log_error_errno(r, "Failed to parse --service-txt= argument.");
- SET_FLAG(arg_flags, SD_RESOLVED_NO_TXT, r == 0);
- break;
-
- case ARG_SEARCH:
- r = parse_boolean(optarg);
- if (r < 0)
- return log_error_errno(r, "Failed to parse --search argument.");
- SET_FLAG(arg_flags, SD_RESOLVED_NO_SEARCH, r == 0);
- break;
-
- case ARG_STATISTICS:
- arg_mode = MODE_STATISTICS;
- break;
-
- case ARG_RESET_STATISTICS:
- arg_mode = MODE_RESET_STATISTICS;
- break;
-
- case ARG_FLUSH_CACHES:
- arg_mode = MODE_FLUSH_CACHES;
- break;
-
- case ARG_STATUS:
- arg_mode = MODE_STATUS;
- break;
-
- case ARG_NO_PAGER:
- arg_no_pager = true;
- break;
-
- case '?':
- return -EINVAL;
-
- default:
- assert_not_reached("Unhandled option");
- }
-
- if (arg_type == 0 && arg_class != 0) {
- log_error("--class= may only be used in conjunction with --type=.");
- return -EINVAL;
- }
-
- if (arg_type != 0 && arg_mode == MODE_RESOLVE_SERVICE) {
- log_error("--service and --type= may not be combined.");
- return -EINVAL;
- }
-
- if (arg_type != 0 && arg_class == 0)
- arg_class = DNS_CLASS_IN;
-
- if (arg_class != 0 && arg_type == 0)
- arg_type = DNS_TYPE_A;
-
- return 1 /* work to do */;
-}
-
-int main(int argc, char **argv) {
- _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
- int r;
-
- log_parse_environment();
- log_open();
-
- r = parse_argv(argc, argv);
- if (r <= 0)
- goto finish;
-
- r = sd_bus_open_system(&bus);
- if (r < 0) {
- log_error_errno(r, "sd_bus_open_system: %m");
- goto finish;
- }
-
- switch (arg_mode) {
-
- case MODE_RESOLVE_HOST:
- if (optind >= argc) {
- log_error("No arguments passed.");
- r = -EINVAL;
- goto finish;
- }
-
- while (argv[optind]) {
- int family, ifindex, k;
- union in_addr_union a;
-
- if (startswith(argv[optind], "dns:"))
- k = resolve_rfc4501(bus, argv[optind]);
- else {
- k = in_addr_ifindex_from_string_auto(argv[optind], &family, &a, &ifindex);
- if (k >= 0)
- k = resolve_address(bus, family, &a, ifindex);
- else
- k = resolve_host(bus, argv[optind]);
- }
-
- if (r == 0)
- r = k;
-
- optind++;
- }
- break;
-
- case MODE_RESOLVE_RECORD:
- if (optind >= argc) {
- log_error("No arguments passed.");
- r = -EINVAL;
- goto finish;
- }
-
- while (argv[optind]) {
- int k;
-
- k = resolve_record(bus, argv[optind], arg_class, arg_type, true);
- if (r == 0)
- r = k;
-
- optind++;
- }
- break;
-
- case MODE_RESOLVE_SERVICE:
- if (argc < optind + 1) {
- log_error("Domain specification required.");
- r = -EINVAL;
- goto finish;
-
- } else if (argc == optind + 1)
- r = resolve_service(bus, NULL, NULL, argv[optind]);
- else if (argc == optind + 2)
- r = resolve_service(bus, NULL, argv[optind], argv[optind+1]);
- else if (argc == optind + 3)
- r = resolve_service(bus, argv[optind], argv[optind+1], argv[optind+2]);
- else {
- log_error("Too many arguments.");
- r = -EINVAL;
- goto finish;
- }
-
- break;
-
- case MODE_RESOLVE_OPENPGP:
- if (argc < optind + 1) {
- log_error("E-mail address required.");
- r = -EINVAL;
- goto finish;
-
- }
-
- r = 0;
- while (optind < argc) {
- int k;
-
- k = resolve_openpgp(bus, argv[optind++]);
- if (k < 0)
- r = k;
- }
- break;
-
- case MODE_RESOLVE_TLSA:
- if (argc < optind + 1) {
- log_error("Domain name required.");
- r = -EINVAL;
- goto finish;
-
- }
-
- r = 0;
- while (optind < argc) {
- int k;
-
- k = resolve_tlsa(bus, argv[optind++]);
- if (k < 0)
- r = k;
- }
- break;
-
- case MODE_STATISTICS:
- if (argc > optind) {
- log_error("Too many arguments.");
- r = -EINVAL;
- goto finish;
- }
-
- r = show_statistics(bus);
- break;
-
- case MODE_RESET_STATISTICS:
- if (argc > optind) {
- log_error("Too many arguments.");
- r = -EINVAL;
- goto finish;
- }
-
- r = reset_statistics(bus);
- break;
-
- case MODE_FLUSH_CACHES:
- if (argc > optind) {
- log_error("Too many arguments.");
- r = -EINVAL;
- goto finish;
- }
-
- r = flush_caches(bus);
- break;
-
- case MODE_STATUS:
-
- if (argc > optind) {
- char **ifname;
- bool empty_line = false;
-
- r = 0;
- STRV_FOREACH(ifname, argv + optind) {
- int ifindex, q;
-
- q = parse_ifindex(argv[optind], &ifindex);
- if (q < 0) {
- ifindex = if_nametoindex(argv[optind]);
- if (ifindex <= 0) {
- log_error_errno(errno, "Failed to resolve interface name: %s", argv[optind]);
- continue;
- }
- }
-
- q = status_ifindex(bus, ifindex, NULL, &empty_line);
- if (q < 0 && r >= 0)
- r = q;
- }
- } else
- r = status_all(bus);
-
- break;
- }
-
-finish:
- pager_close();
-
- return r == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-01 11:52:40 +0000