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netconfig: Add multiple levels to IWD_DHCP_DEBUG

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Allows granularly specifying the DHCP logging level. This allows the
user to tailor the output to what they need. By default, always display
info, errors and warnings to match the rest of iwd.

Setting `IWD_DHCP_DEBUG` to "debug", "info", "warn", "error" will limit
the logging to that level or higher allowing the default logging
verbosity to be reduced.

Setting `IWD_DHCP_DEBUG` to "1" as per the current behavior will
continue to enable debug level logging.
This commit is contained in:
Michael Johnson 2022-05-18 15:39:14 +01:00 committed by Denis Kenzior
parent f370b1b960
commit 28d13f9a43
1 changed files with 18 additions and 3 deletions
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21
src/netconfig.c
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@ -1621,6 +1621,8 @@ struct netconfig *netconfig_new(uint32_t ifindex)
struct netdev *netdev = netdev_find(ifindex);
struct netconfig *netconfig;
struct l_icmp6_client *icmp6;
const char *debug_level = NULL;
int dhcp_priority = L_LOG_INFO;
if (!netconfig_list)
return NULL;
@ -1640,9 +1642,22 @@ struct netconfig *netconfig_new(uint32_t ifindex)
netconfig_ipv4_dhcp_event_handler,
netconfig, NULL);
if (getenv("IWD_DHCP_DEBUG"))
l_dhcp_client_set_debug(netconfig->dhcp_client, do_debug,
"[DHCPv4] ", NULL);
debug_level = getenv("IWD_DHCP_DEBUG");
if (debug_level != NULL) {
if (!strcmp("debug", debug_level))
dhcp_priority = L_LOG_DEBUG;
else if (!strcmp("info", debug_level))
dhcp_priority = L_LOG_INFO;
else if (!strcmp("warn", debug_level))
dhcp_priority = L_LOG_WARNING;
else if (!strcmp("error", debug_level))
dhcp_priority = L_LOG_ERR;
else /* Default for backwards compatibility */
dhcp_priority = L_LOG_DEBUG;
}
l_dhcp_client_set_debug(netconfig->dhcp_client, do_debug,
"[DHCPv4] ", NULL, dhcp_priority);
netconfig->dhcp6_client = l_dhcp6_client_new(ifindex);
l_dhcp6_client_set_event_handler(netconfig->dhcp6_client,