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dhcp: Add macro for appending extra client's request options

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Co-Authored-By: Liu Han <liuhan@espressif.com>
Co-Authored-By: Simon Goldschmidt <goldsimon@gmx.de>
This commit is contained in:
David Cermak 2022-03-29 16:09:26 +02:00 committed by Simon Goldschmidt
parent 90b2a6b4c4
commit 3aa82745c1
1 changed files with 12 additions and 0 deletions
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12
src/core/ipv4/dhcp.c
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@ -93,6 +93,17 @@
#define LWIP_HOOK_DHCP_PARSE_OPTION(netif, dhcp, state, msg, msg_type, option, len, pbuf, offset) do { LWIP_UNUSED_ARG(msg); } while(0) #define LWIP_HOOK_DHCP_PARSE_OPTION(netif, dhcp, state, msg, msg_type, option, len, pbuf, offset) do { LWIP_UNUSED_ARG(msg); } while(0)
#endif #endif
/** DHCP_ADD_EXTRA_REQUEST_OPTIONS: Additional options added to the list of options
* that the client requests from the servers (opt 55: DHCP_OPTION_PARAMETER_REQUEST_LIST)
* If additional options are requested, define this macro as a comma separated list, with leading comma.
* This macro is useful for example when requested vendor specific ids (VCI/VSI options), here is an example
* of requesting the VSI option (option 43) (yes, the notation is a bit strange, but it works :)
* #define DHCP_ADD_EXTRA_REQUEST_OPTIONS ,43
*/
#ifndef DHCP_ADD_EXTRA_REQUEST_OPTIONS
#define DHCP_ADD_EXTRA_REQUEST_OPTIONS
#endif
/** DHCP_DEFINE_CUSTOM_TIMEOUTS: if this is defined then you can customize various DHCP timeouts using these macros: /** DHCP_DEFINE_CUSTOM_TIMEOUTS: if this is defined then you can customize various DHCP timeouts using these macros:
- DHCP_SET_TIMEOUT_FROM_OFFERED_T0_LEASE() to adjust the t0 lease timeout from the offered value - DHCP_SET_TIMEOUT_FROM_OFFERED_T0_LEASE() to adjust the t0 lease timeout from the offered value
- DHCP_SET_TIMEOUT_FROM_OFFERED_T1_RENEW() same for t1 renew - DHCP_SET_TIMEOUT_FROM_OFFERED_T1_RENEW() same for t1 renew
@ -204,6 +215,7 @@ static u8_t dhcp_discover_request_options[] = {
#if LWIP_DHCP_GET_NTP_SRV #if LWIP_DHCP_GET_NTP_SRV
, DHCP_OPTION_NTP , DHCP_OPTION_NTP
#endif /* LWIP_DHCP_GET_NTP_SRV */ #endif /* LWIP_DHCP_GET_NTP_SRV */
DHCP_ADD_EXTRA_REQUEST_OPTIONS
}; };
#ifdef DHCP_GLOBAL_XID #ifdef DHCP_GLOBAL_XID