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Merged in masayuki2009/nuttx.apps/dhcpc_host_name (pull request #197)

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netutils/dhcpc: Add host name support to dhcp client

Signed-off-by: Masayuki Ishikawa <Masayuki.Ishikawa@jp.sony.com>

Approved-by: Gregory Nutt <gnutt@nuttx.org>
This commit is contained in:
Masayuki Ishikawa 2019-08-14 11:29:18 +00:00 committed by Gregory Nutt
parent 144a0180e2
commit 811086ff85
2 changed files with 19 additions and 0 deletions
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4
netutils/dhcpc/Kconfig
View File

@ -12,4 +12,8 @@ config NETUTILS_DHCPC
if NETUTILS_DHCPC
config NETUTILS_DHCPC_HOST_NAME
string "DHCP client host name"
default "nuttx"
endif

15
netutils/dhcpc/dhcpc.c
View File

@ -93,6 +93,7 @@
#define DHCP_OPTION_SUBNET_MASK 1
#define DHCP_OPTION_ROUTER 3
#define DHCP_OPTION_DNS_SERVER 6
#define DHCP_OPTION_HOST_NAME 12
#define DHCP_OPTION_REQ_IPADDR 50
#define DHCP_OPTION_LEASE_TIME 51
#define DHCP_OPTION_MSG_TYPE 53
@ -153,6 +154,16 @@ static const uint8_t magic_cookie[4] = {99, 130, 83, 99};
* Name: dhcpc_add<option>
****************************************************************************/
static FAR uint8_t *dhcpc_addhostname(FAR const char *hostname,
FAR uint8_t *optptr)
{
int len = strlen(hostname);
*optptr++ = DHCP_OPTION_HOST_NAME;
*optptr++ = len;
memcpy(optptr, hostname, len);
return optptr + len;
}
static FAR uint8_t *dhcpc_addmsgtype(FAR uint8_t *optptr, uint8_t type)
{
*optptr++ = DHCP_OPTION_MSG_TYPE;
@ -235,6 +246,8 @@ static int dhcpc_sendmsg(FAR struct dhcpc_state_s *pdhcpc,
*/
pdhcpc->packet.flags = HTONS(BOOTP_BROADCAST); /* Broadcast bit. */
pend = dhcpc_addhostname(CONFIG_NETUTILS_DHCPC_HOST_NAME, pend);
pend = dhcpc_addreqoptions(pend);
break;
@ -246,6 +259,8 @@ static int dhcpc_sendmsg(FAR struct dhcpc_state_s *pdhcpc,
*/
pdhcpc->packet.flags = HTONS(BOOTP_BROADCAST); /* Broadcast bit. */
pend = dhcpc_addhostname(CONFIG_NETUTILS_DHCPC_HOST_NAME, pend);
pend = dhcpc_addserverid(&pdhcpc->serverid, pend);
pend = dhcpc_addreqipaddr(&pdhcpc->ipaddr, pend);
break;