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net: shell: dns: Print DNS server with network interface 

If network interface is specified in the DNS server, then send
the queries to the server via the network interface. Print this
information in the server list.

Signed-off-by: Jukka Rissanen <jukka.rissanen@nordicsemi.no>
This commit is contained in:
Jukka Rissanen 2024-11-07 17:23:06 +02:00 committed by Anas Nashif
parent 6c95daf0ae
commit f95ab280fb
1 changed files with 34 additions and 7 deletions
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41
subsys/net/lib/shell/dns.c
View File

@ -8,6 +8,7 @@
#include <zephyr/logging/log.h>
LOG_MODULE_DECLARE(net_shell);
#include <zephyr/net/socket.h>
#include <zephyr/net/dns_resolve.h>
#include "net_shell_private.h"
@ -59,29 +60,55 @@ static void dns_result_cb(enum dns_resolve_status status,
PR_WARNING("dns: Unhandled status %d received\n", status);
}
static const char *printable_iface(const char *iface_name,
const char *found,
const char *not_found)
{
if (iface_name[0] != '\0') {
return found;
}
return not_found;
}
static void print_dns_info(const struct shell *sh,
struct dns_resolve_context *ctx)
{
int i;
int i, ret;
PR("DNS servers:\n");
for (i = 0; i < CONFIG_DNS_RESOLVER_MAX_SERVERS +
DNS_MAX_MCAST_SERVERS; i++) {
char iface_name[IFNAMSIZ] = { 0 };
if (ctx->servers[i].if_index > 0) {
ret = net_if_get_name(
net_if_get_by_index(ctx->servers[i].if_index),
iface_name, sizeof(iface_name));
if (ret < 0) {
snprintk(iface_name, sizeof(iface_name), "%d",
ctx->servers[i].if_index);
}
}
if (ctx->servers[i].dns_server.sa_family == AF_INET) {
PR("\t%s:%u\n",
PR("\t%s:%u%s%s\n",
net_sprint_ipv4_addr(
&net_sin(&ctx->servers[i].dns_server)->
sin_addr),
ntohs(net_sin(
&ctx->servers[i].dns_server)->sin_port));
ntohs(net_sin(&ctx->servers[i].dns_server)->sin_port),
printable_iface(iface_name, " via ", ""),
printable_iface(iface_name, iface_name, ""));
} else if (ctx->servers[i].dns_server.sa_family == AF_INET6) {
PR("\t[%s]:%u\n",
PR("\t[%s]:%u%s%s\n",
net_sprint_ipv6_addr(
&net_sin6(&ctx->servers[i].dns_server)->
sin6_addr),
ntohs(net_sin6(
&ctx->servers[i].dns_server)->sin6_port));
ntohs(net_sin6(&ctx->servers[i].dns_server)->sin6_port),
printable_iface(iface_name, " via ", ""),
printable_iface(iface_name, iface_name, ""));
}
}