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net: dhcp: add support to send the hostname to the dhcp server 

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Jean-Christophe PLAGNIOL-VILLARD 2012-04-15 15:27:39 +02:00 committed by Sascha Hauer
parent 3170433558
commit 903d939193
1 changed files with 12 additions and 2 deletions
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14
net/dhcp.c
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@ -237,6 +237,7 @@ static int dhcp_set_string_options(struct dhcp_param *param, u8 *e)
return str_len + 2; return str_len + 2;
} }
#define DHCP_HOSTNAME 12
#define DHCP_VENDOR_ID 60 #define DHCP_VENDOR_ID 60
#define DHCP_CLIENT_ID 61 #define DHCP_CLIENT_ID 61
#define DHCP_USER_CLASS 77 #define DHCP_USER_CLASS 77
@ -244,6 +245,10 @@ static int dhcp_set_string_options(struct dhcp_param *param, u8 *e)
struct dhcp_param dhcp_params[] = { struct dhcp_param dhcp_params[] = {
{ {
.option = DHCP_HOSTNAME,
.handle = dhcp_set_string_options,
.barebox_var_name = "hostname",
}, {
.option = DHCP_VENDOR_ID, .option = DHCP_VENDOR_ID,
.handle = dhcp_set_string_options, .handle = dhcp_set_string_options,
.barebox_var_name = "dhcp_vendor_id", .barebox_var_name = "dhcp_vendor_id",
@ -614,8 +619,11 @@ static int do_dhcp(int argc, char *argv[])
dhcp_reset_env(); dhcp_reset_env();
while((opt = getopt(argc, argv, "v:c:u:U:")) > 0) { while((opt = getopt(argc, argv, "H:v:c:u:U:")) > 0) {
switch(opt) { switch(opt) {
case 'H':
dhcp_set_param_data(DHCP_HOSTNAME, optarg);
break;
case 'v': case 'v':
dhcp_set_param_data(DHCP_VENDOR_ID, optarg); dhcp_set_param_data(DHCP_VENDOR_ID, optarg);
break; break;
@ -672,6 +680,8 @@ out:
BAREBOX_CMD_HELP_START(dhcp) BAREBOX_CMD_HELP_START(dhcp)
BAREBOX_CMD_HELP_USAGE("dhcp [OPTIONS]\n") BAREBOX_CMD_HELP_USAGE("dhcp [OPTIONS]\n")
BAREBOX_CMD_HELP_SHORT("Invoke dhcp client to obtain ip/boot params.\n") BAREBOX_CMD_HELP_SHORT("Invoke dhcp client to obtain ip/boot params.\n")
BAREBOX_CMD_HELP_OPT ("-H <hostname>",
"Hostname to send to the DHCP server\n");
BAREBOX_CMD_HELP_OPT ("-v <vendor_id>", BAREBOX_CMD_HELP_OPT ("-v <vendor_id>",
"DHCP Vendor ID (code 60) submitted in DHCP requests. It can\n" "DHCP Vendor ID (code 60) submitted in DHCP requests. It can\n"
"be used in the DHCP server's configuration to select options\n" "be used in the DHCP server's configuration to select options\n"
@ -697,7 +707,7 @@ BAREBOX_CMD_START(dhcp)
BAREBOX_CMD_END BAREBOX_CMD_END
BAREBOX_MAGICVAR(bootfile, "bootfile returned from DHCP request"); BAREBOX_MAGICVAR(bootfile, "bootfile returned from DHCP request");
BAREBOX_MAGICVAR(hostname, "hostname returned from DHCP request"); BAREBOX_MAGICVAR(hostname, "hostname to send or returned from DHCP request");
BAREBOX_MAGICVAR(rootpath, "rootpath returned from DHCP request"); BAREBOX_MAGICVAR(rootpath, "rootpath returned from DHCP request");
BAREBOX_MAGICVAR(dhcp_vendor_id, "vendor id to send to the DHCP server"); BAREBOX_MAGICVAR(dhcp_vendor_id, "vendor id to send to the DHCP server");
BAREBOX_MAGICVAR(dhcp_client_uuid, "cliend uuid to send to the DHCP server"); BAREBOX_MAGICVAR(dhcp_client_uuid, "cliend uuid to send to the DHCP server");