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add support for setting the dhcp vendor class option (option 60).

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udhcpc now has a -V (--vendorclass), which will replace the default
"udhcpRELEASE" string in this option.
This commit is contained in:
Paul Fox 2005-09-22 18:59:13 +00:00
parent 2f9c30a2d5
commit 28de951b02
5 changed files with 30 additions and 10 deletions
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3
include/usage.h
View File

@ -2998,10 +2998,11 @@
"Adjust filesystem options on ext[23] filesystems.\n\n"
#define udhcpc_trivial_usage \
"[-Cfbnqv] [-c CLIENTID] [-H HOSTNAME] [-i INTERFACE]\n[-p pidfile] [-r IP] [-s script]"
"[-Cfbnqv] [-c CID] [-V VCLS] [-H HOSTNAME] [-i INTERFACE]\n[-p pidfile] [-r IP] [-s script]"
#define udhcpc_full_usage \
"\t-c,\t--clientid=CLIENTID\tSet client identifier\n" \
"\t-C,\t--clientid-none\tSuppress default client identifier\n" \
"\t-V,\t--vendorclass=CLASSID\tSet vendor class identifier\n" \
"\t-H,\t--hostname=HOSTNAME\tClient hostname\n" \
"\t-h,\t \tAlias for -H\n" \
"\t-f,\t--foreground\tDo not fork after getting lease\n" \

4
networking/udhcp/README.udhcpc
View File

@ -10,7 +10,9 @@ command line options
The command line options for the udhcp client are:
-c, --clientid=CLIENTID Client identifier
-c, --clientid=CLIENTID Set client identifier. Type is first char.
-C, --clientid-none Suppress default client identifier
-V, --vendorclass=CLASSID Set vendor class identifier
-H, --hostname=HOSTNAME Client hostname
-h, Alias for -H
-F, --fqdn=FQDN Client fully qualified domain name

7
networking/udhcp/clientpacket.c
View File

@ -69,18 +69,13 @@ unsigned long random_xid(void)
/* initialize a packet with the proper defaults */
static void init_packet(struct dhcpMessage *packet, char type)
{
struct vendor {
char vendor, length;
char str[sizeof("udhcp "VERSION)];
} vendor_id = { DHCP_VENDOR, sizeof("udhcp "VERSION) - 1, "udhcp "VERSION};
init_header(packet, type);
memcpy(packet->chaddr, client_config.arp, 6);
if (client_config.clientid)
add_option_string(packet->options, client_config.clientid);
if (client_config.hostname) add_option_string(packet->options, client_config.hostname);
if (client_config.fqdn) add_option_string(packet->options, client_config.fqdn);
add_option_string(packet->options, (uint8_t *) &vendor_id);
add_option_string(packet->options, client_config.vendorclass);
}

25
networking/udhcp/dhcpc.c
View File

@ -66,6 +66,7 @@ struct client_config_t client_config = {
.pidfile = NULL,
.script = DEFAULT_SCRIPT,
.clientid = NULL,
.vendorclass = NULL,
.hostname = NULL,
.fqdn = NULL,
.ifindex = 0,
@ -77,8 +78,9 @@ static void __attribute__ ((noreturn)) show_usage(void)
{
printf(
"Usage: udhcpc [OPTIONS]\n\n"
" -c, --clientid=CLIENTID Set client identifier\n"
" -c, --clientid=CLIENTID Set client identifier - type is first char\n"
" -C, --clientid-none Suppress default client identifier\n"
" -V, --vendorclass=CLASSID Set vendor class identifier\n"
" -H, --hostname=HOSTNAME Client hostname\n"
" -h Alias for -H\n"
" -F, --fqdn=FQDN Client fully qualified domain name\n"
@ -199,6 +201,7 @@ int main(int argc, char *argv[])
static const struct option arg_options[] = {
{"clientid", required_argument, 0, 'c'},
{"clientid-none", no_argument, 0, 'C'},
{"vendorclass", required_argument, 0, 'V'},
{"foreground", no_argument, 0, 'f'},
{"background", no_argument, 0, 'b'},
{"hostname", required_argument, 0, 'H'},
@ -217,7 +220,7 @@ int main(int argc, char *argv[])
/* get options */
while (1) {
int option_index = 0;
c = getopt_long(argc, argv, "c:CfbH:h:F:i:np:qr:s:v", arg_options, &option_index);
c = getopt_long(argc, argv, "c:CV:fbH:h:F:i:np:qr:s:v", arg_options, &option_index);
if (c == -1) break;
switch (c) {
@ -235,6 +238,14 @@ int main(int argc, char *argv[])
if (client_config.clientid) show_usage();
no_clientid = 1;
break;
case 'V':
len = strlen(optarg) > 255 ? 255 : strlen(optarg);
if (client_config.vendorclass) free(client_config.vendorclass);
client_config.vendorclass = xmalloc(len + 2);
client_config.vendorclass[OPT_CODE] = DHCP_VENDOR;
client_config.vendorclass[OPT_LEN] = len;
strncpy(client_config.vendorclass + OPT_DATA, optarg, len);
break;
case 'f':
client_config.foreground = 1;
break;
@ -310,6 +321,16 @@ int main(int argc, char *argv[])
memcpy(client_config.clientid + 3, client_config.arp, 6);
}
if (!client_config.vendorclass) {
client_config.vendorclass = xmalloc(sizeof("udhcp "VERSION) + 2);
client_config.vendorclass[OPT_CODE] = DHCP_VENDOR;
client_config.vendorclass[OPT_LEN] = sizeof("udhcp "VERSION) - 1;
client_config.vendorclass[OPT_DATA] = 1;
memcpy(&client_config.vendorclass[OPT_DATA],
"udhcp "VERSION, sizeof("udhcp "VERSION) - 1);
}
/* setup the signal pipe */
udhcp_sp_setup();

1
networking/udhcp/dhcpc.h
View File

@ -26,6 +26,7 @@ struct client_config_t {
char *pidfile; /* Optionally store the process ID */
char *script; /* User script to run at dhcp events */
uint8_t *clientid; /* Optional client id to use */
uint8_t *vendorclass; /* Optional vendor class-id to use */
uint8_t *hostname; /* Optional hostname to use */
uint8_t *fqdn; /* Optional fully qualified domain name to use */
int ifindex; /* Index number of the interface to use */