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Diffstat (limited to 'src/resolve-host/resolve-host.c')
-rw-r--r--src/resolve-host/resolve-host.c191
1 files changed, 106 insertions, 85 deletions
diff --git a/src/resolve-host/resolve-host.c b/src/resolve-host/resolve-host.c
index 0edba415b6..97516a87a8 100644
--- a/src/resolve-host/resolve-host.c
+++ b/src/resolve-host/resolve-host.c
@@ -23,14 +23,13 @@
#include <getopt.h>
#include "sd-bus.h"
-#include "bus-util.h"
+
+#include "af-list.h"
#include "bus-error.h"
+#include "bus-util.h"
#include "in-addr-util.h"
-#include "af-list.h"
-#include "build.h"
-
-#include "resolved-dns-packet.h"
#include "resolved-def.h"
+#include "resolved-dns-packet.h"
#define DNS_CALL_TIMEOUT_USEC (45*USEC_PER_SEC)
@@ -41,12 +40,13 @@ static uint16_t arg_class = 0;
static bool arg_legend = true;
static uint64_t arg_flags = 0;
-static void print_source(int ifindex, uint64_t flags) {
+static void print_source(uint64_t flags, usec_t rtt) {
+ char rtt_str[FORMAT_TIMESTAMP_MAX];
if (!arg_legend)
return;
- if (ifindex <= 0 && flags == 0)
+ if (flags == 0)
return;
fputs("\n-- Information acquired via", stdout);
@@ -57,10 +57,9 @@ static void print_source(int ifindex, uint64_t flags) {
flags & SD_RESOLVED_LLMNR_IPV4 ? " LLMNR/IPv4" : "",
flags & SD_RESOLVED_LLMNR_IPV6 ? " LLMNR/IPv6" : "");
- if (ifindex > 0) {
- char ifname[IF_NAMESIZE] = "";
- printf(" interface %s", strna(if_indextoname(ifindex, ifname)));
- }
+ assert_se(format_timespan(rtt_str, sizeof(rtt_str), rtt, 100));
+
+ printf(" in %s", rtt_str);
fputc('.', stdout);
fputc('\n', stdout);
@@ -71,13 +70,18 @@ static int resolve_host(sd_bus *bus, const char *name) {
_cleanup_bus_message_unref_ sd_bus_message *req = NULL, *reply = NULL;
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
const char *canonical = NULL;
+ char ifname[IF_NAMESIZE] = "";
unsigned c = 0;
- int r, ifindex;
+ int r;
uint64_t flags;
+ usec_t ts;
assert(name);
- log_debug("Resolving %s (family %s, ifindex %i).", name, af_to_name(arg_family) ?: "*", arg_ifindex);
+ 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,
@@ -93,28 +97,29 @@ static int resolve_host(sd_bus *bus, const char *name) {
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", name, bus_error_message(&error, r));
return r;
}
- r = sd_bus_message_read(reply, "i", &ifindex);
- if (r < 0)
- return bus_log_parse_error(r);
+ ts = now(CLOCK_MONOTONIC) - ts;
- r = sd_bus_message_enter_container(reply, 'a', "(iay)");
+ 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', "iay")) > 0) {
+ while ((r = sd_bus_message_enter_container(reply, 'r', "iiay")) > 0) {
const void *a;
- int family;
size_t sz;
_cleanup_free_ char *pretty = NULL;
- char ifname[IF_NAMESIZE] = "";
+ int ifindex, family;
- r = sd_bus_message_read(reply, "i", &family);
+ 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);
@@ -132,26 +137,17 @@ static int resolve_host(sd_bus *bus, const char *name) {
}
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");
+ log_error("%s: systemd-resolved returned address of invalid size %zu for family %s", name, sz, af_to_name(family) ?: "unknown");
continue;
}
- if (ifindex > 0) {
- char *t;
-
- t = if_indextoname(ifindex, ifname);
- if (!t) {
- log_error("Failed to resolve interface name for index %i", ifindex);
- continue;
- }
- }
+ 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) {
- log_error_errno(r, "%s: failed to print address: %m", name);
- continue;
- }
+ 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 ? ":" : " ",
@@ -171,18 +167,17 @@ static int resolve_host(sd_bus *bus, const char *name) {
if (r < 0)
return bus_log_parse_error(r);
- if (!streq(name, canonical)) {
+ 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(ifindex, flags);
+ print_source(flags, ts);
return 0;
}
@@ -194,26 +189,22 @@ static int resolve_address(sd_bus *bus, int family, const union in_addr_union *a
char ifname[IF_NAMESIZE] = "";
uint64_t flags;
unsigned c = 0;
- const char *n;
+ 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_to_string(family, address, &pretty);
if (r < 0)
return log_oom();
- if (ifindex > 0) {
- char *t;
-
- t = if_indextoname(ifindex, ifname);
- if (!t) {
- log_error("Failed to resolve interface name for index %i", ifindex);
- return -errno;
- }
- }
+ 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);
@@ -227,10 +218,6 @@ static int resolve_address(sd_bus *bus, int family, const union in_addr_union *a
if (r < 0)
return bus_log_create_error(r);
- r = sd_bus_message_set_auto_start(req, false);
- 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);
@@ -243,25 +230,41 @@ static int resolve_address(sd_bus *bus, int family, const union in_addr_union *a
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;
}
- r = sd_bus_message_read(reply, "i", &ifindex);
- if (r < 0)
- return bus_log_parse_error(r);
+ ts = now(CLOCK_MONOTONIC) - ts;
- r = sd_bus_message_enter_container(reply, 'a', "s");
+ r = sd_bus_message_enter_container(reply, 'a', "(is)");
if (r < 0)
return bus_log_create_error(r);
- while ((r = sd_bus_message_read(reply, "s", &n)) > 0) {
+ 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",
+ printf("%*s%*s%*s%s %s\n",
(int) strlen(pretty), c == 0 ? pretty : "",
- isempty(ifname) ? "" : "%", ifname,
+ isempty(ifname) ? 0 : 1, c > 0 || isempty(ifname) ? "" : "%",
+ (int) strlen(ifname), c == 0 ? ifname : "",
c == 0 ? ":" : " ",
n);
@@ -283,7 +286,7 @@ static int resolve_address(sd_bus *bus, int family, const union in_addr_union *a
return -ESRCH;
}
- print_source(ifindex, flags);
+ print_source(flags, ts);
return 0;
}
@@ -318,13 +321,18 @@ static int resolve_record(sd_bus *bus, const char *name) {
_cleanup_bus_message_unref_ sd_bus_message *req = NULL, *reply = NULL;
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
+ char ifname[IF_NAMESIZE] = "";
unsigned n = 0;
uint64_t flags;
- int r, ifindex;
+ int r;
+ usec_t ts;
assert(name);
- log_debug("Resolving %s %s %s.", name, dns_class_to_string(arg_class), dns_type_to_string(arg_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);
+
+ log_debug("Resolving %s %s %s (interface %s).", name, dns_class_to_string(arg_class), dns_type_to_string(arg_type), isempty(ifname) ? "*" : ifname);
r = sd_bus_message_new_method_call(
bus,
@@ -336,38 +344,37 @@ static int resolve_record(sd_bus *bus, const char *name) {
if (r < 0)
return bus_log_create_error(r);
- r = sd_bus_message_set_auto_start(req, false);
- if (r < 0)
- return bus_log_create_error(r);
-
assert((uint16_t) arg_type == arg_type);
r = sd_bus_message_append(req, "isqqt", arg_ifindex, name, arg_class, arg_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) {
log_error("%s: resolve call failed: %s", name, bus_error_message(&error, r));
return r;
}
- r = sd_bus_message_read(reply, "i", &ifindex);
- if (r < 0)
- return bus_log_parse_error(r);
+ ts = now(CLOCK_MONOTONIC) - ts;
- r = sd_bus_message_enter_container(reply, 'a', "(qqay)");
+ 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', "qqay")) > 0) {
+ while ((r = sd_bus_message_enter_container(reply, 'r', "iqqay")) > 0) {
_cleanup_(dns_resource_record_unrefp) DnsResourceRecord *rr = NULL;
_cleanup_(dns_packet_unrefp) DnsPacket *p = NULL;
_cleanup_free_ char *s = NULL;
uint16_t c, t;
+ int ifindex;
const void *d;
size_t l;
- r = sd_bus_message_read(reply, "qq", &c, &t);
+ 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);
@@ -383,6 +390,8 @@ static int resolve_record(sd_bus *bus, const char *name) {
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();
@@ -399,7 +408,11 @@ static int resolve_record(sd_bus *bus, const char *name) {
return r;
}
- printf("%s\n", s);
+ 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\n", s, isempty(ifname) ? "" : " # interface ", ifname);
n++;
}
if (r < 0)
@@ -418,7 +431,7 @@ static int resolve_record(sd_bus *bus, const char *name) {
return -ESRCH;
}
- print_source(ifindex, flags);
+ print_source(flags, ts);
return 0;
}
@@ -428,7 +441,7 @@ static void help_dns_types(void) {
const char *t;
if (arg_legend)
- puts("Known dns types:");
+ puts("Known DNS RR types:");
for (i = 0; i < _DNS_TYPE_MAX; i++) {
t = dns_type_to_string(i);
if (t)
@@ -441,7 +454,7 @@ static void help_dns_classes(void) {
const char *t;
if (arg_legend)
- puts("Known dns classes:");
+ puts("Known DNS RR classes:");
for (i = 0; i < _DNS_CLASS_MAX; i++) {
t = dns_class_to_string(i);
if (t)
@@ -475,7 +488,7 @@ static int parse_argv(int argc, char *argv[]) {
{ "version", no_argument, NULL, ARG_VERSION },
{ "type", required_argument, NULL, 't' },
{ "class", required_argument, NULL, 'c' },
- { "legend", optional_argument, NULL, ARG_LEGEND },
+ { "legend", optional_argument, NULL, ARG_LEGEND },
{ "protocol", required_argument, NULL, 'p' },
{}
};
@@ -493,9 +506,7 @@ static int parse_argv(int argc, char *argv[]) {
return 0; /* done */;
case ARG_VERSION:
- puts(PACKAGE_STRING);
- puts(SYSTEMD_FEATURES);
- return 0 /* done */;
+ return version();
case '4':
arg_family = AF_INET;
@@ -505,11 +516,21 @@ static int parse_argv(int argc, char *argv[]) {
arg_family = AF_INET6;
break;
- case 'i':
- arg_ifindex = if_nametoindex(optarg);
- if (arg_ifindex <= 0)
- return log_error_errno(errno, "Unknown interfaces %s: %m", optarg);
+ case 'i': {
+ int ifi;
+
+ if (safe_atoi(optarg, &ifi) >= 0 && 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")) {
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2025-01-11 02:43:46 +0000