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netutils/dhcpc: Add dhcp client id option

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Signed-off-by: SunJ <jsun@bouffalolab.com>
This commit is contained in:
SunJ 2022-09-26 11:28:28 +08:00 committed by Xiang Xiao
parent 09dfbdf4c7
commit 162dc0996c
1 changed files with 14 additions and 0 deletions
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14
netutils/dhcpc/dhcpc.c
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@ -99,6 +99,7 @@
#define DHCP_OPTION_MSG_TYPE 53
#define DHCP_OPTION_SERVER_ID 54
#define DHCP_OPTION_REQ_LIST 55
#define DHCP_OPTION_CLIENT_ID 61
#define DHCP_OPTION_END 255
#define BUFFER_SIZE 256
@ -196,6 +197,17 @@ static FAR uint8_t *dhcpc_addreqipaddr(FAR struct in_addr *ipaddr,
return optptr + 4;
}
static FAR uint8_t *dhcpc_addclientid(FAR uint8_t *clientid,
FAR uint8_t len,
FAR uint8_t *optptr)
{
*optptr++ = DHCP_OPTION_CLIENT_ID;
*optptr++ = 1 + len;
*optptr++ = 0x1;
memcpy(optptr, clientid, len);
return optptr + len;
}
static FAR uint8_t *dhcpc_addreqoptions(FAR uint8_t *optptr)
{
*optptr++ = DHCP_OPTION_REQ_LIST;
@ -265,6 +277,7 @@ static int dhcpc_sendmsg(FAR struct dhcpc_state_s *pdhcpc,
pend = dhcpc_addhostname(hostname, pend);
pend = dhcpc_addreqoptions(pend);
pend = dhcpc_addclientid(pdhcpc->macaddr, pdhcpc->maclen, pend);
break;
/* Send REQUEST message to the server that sent the *first* OFFER */
@ -281,6 +294,7 @@ static int dhcpc_sendmsg(FAR struct dhcpc_state_s *pdhcpc,
pend = dhcpc_addhostname(hostname, pend);
pend = dhcpc_addserverid(&pdhcpc->serverid, pend);
pend = dhcpc_addreqipaddr(&pdhcpc->ipaddr, pend);
pend = dhcpc_addclientid(pdhcpc->macaddr, pdhcpc->maclen, pend);
break;
/* Send DECLINE message to the server that sent the *last* OFFER */