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Diffstat (limited to 'networking/udhcp/options.c')
-rw-r--r--networking/udhcp/options.c68
1 files changed, 37 insertions, 31 deletions
diff --git a/networking/udhcp/options.c b/networking/udhcp/options.c
index 6744e2a..ffc0ed1 100644
--- a/networking/udhcp/options.c
+++ b/networking/udhcp/options.c
@@ -9,37 +9,42 @@
#include "options.h"
-/* supported options are easily added here */
+/* Supported options are easily added here */
const struct dhcp_option dhcp_options[] = {
- /* name[12] flags code */
- {"subnet", OPTION_IP | OPTION_REQ, 0x01},
- {"timezone", OPTION_S32, 0x02},
- {"router", OPTION_IP | OPTION_LIST | OPTION_REQ, 0x03},
- {"timesvr", OPTION_IP | OPTION_LIST, 0x04},
- {"namesvr", OPTION_IP | OPTION_LIST, 0x05},
- {"dns", OPTION_IP | OPTION_LIST | OPTION_REQ, 0x06},
- {"logsvr", OPTION_IP | OPTION_LIST, 0x07},
- {"cookiesvr", OPTION_IP | OPTION_LIST, 0x08},
- {"lprsvr", OPTION_IP | OPTION_LIST, 0x09},
- {"hostname", OPTION_STRING | OPTION_REQ, 0x0c},
- {"bootsize", OPTION_U16, 0x0d},
- {"domain", OPTION_STRING | OPTION_LIST | OPTION_REQ, 0x0f},
- {"swapsvr", OPTION_IP, 0x10},
- {"rootpath", OPTION_STRING, 0x11},
- {"ipttl", OPTION_U8, 0x17},
- {"mtu", OPTION_U16, 0x1a},
- {"broadcast", OPTION_IP | OPTION_REQ, 0x1c},
- {"nisdomain", OPTION_STRING | OPTION_REQ, 0x28},
- {"nissrv", OPTION_IP | OPTION_LIST | OPTION_REQ, 0x29},
- {"ntpsrv", OPTION_IP | OPTION_LIST | OPTION_REQ, 0x2a},
- {"wins", OPTION_IP | OPTION_LIST, 0x2c},
- {"requestip", OPTION_IP, 0x32},
- {"lease", OPTION_U32, 0x33},
- {"dhcptype", OPTION_U8, 0x35},
- {"serverid", OPTION_IP, 0x36},
- {"message", OPTION_STRING, 0x38},
- {"vendorclass", OPTION_STRING, 0x3C},
- {"clientid", OPTION_STRING, 0x3D},
+ /* opt_name[12] flags code */
+ {"subnet", OPTION_IP | OPTION_REQ, 0x01}, /* DHCP_SUBNET */
+ {"timezone", OPTION_S32, 0x02}, /* DHCP_TIME_OFFSET */
+ {"router", OPTION_IP | OPTION_LIST | OPTION_REQ, 0x03}, /* DHCP_ROUTER */
+ {"timesvr", OPTION_IP | OPTION_LIST, 0x04}, /* DHCP_TIME_SERVER */
+ {"namesvr", OPTION_IP | OPTION_LIST, 0x05}, /* DHCP_NAME_SERVER */
+ {"dns", OPTION_IP | OPTION_LIST | OPTION_REQ, 0x06}, /* DHCP_DNS_SERVER */
+ {"logsvr", OPTION_IP | OPTION_LIST, 0x07}, /* DHCP_LOG_SERVER */
+ {"cookiesvr", OPTION_IP | OPTION_LIST, 0x08}, /* DHCP_COOKIE_SERVER */
+ {"lprsvr", OPTION_IP | OPTION_LIST, 0x09}, /* DHCP_LPR_SERVER */
+ {"hostname", OPTION_STRING | OPTION_REQ, 0x0c}, /* DHCP_HOST_NAME */
+ {"bootsize", OPTION_U16, 0x0d}, /* DHCP_BOOT_SIZE */
+ {"domain", OPTION_STRING | OPTION_LIST | OPTION_REQ, 0x0f}, /* DHCP_DOMAIN_NAME */
+ {"swapsvr", OPTION_IP, 0x10}, /* DHCP_SWAP_SERVER */
+ {"rootpath", OPTION_STRING, 0x11}, /* DHCP_ROOT_PATH */
+ {"ipttl", OPTION_U8, 0x17}, /* DHCP_IP_TTL */
+ {"mtu", OPTION_U16, 0x1a}, /* DHCP_MTU */
+ {"broadcast", OPTION_IP | OPTION_REQ, 0x1c}, /* DHCP_BROADCAST */
+ {"nisdomain", OPTION_STRING | OPTION_REQ, 0x28}, /* DHCP_NTP_SERVER */
+ {"nissrv", OPTION_IP | OPTION_LIST | OPTION_REQ, 0x29}, /* DHCP_WINS_SERVER */
+ {"ntpsrv", OPTION_IP | OPTION_LIST | OPTION_REQ, 0x2a}, /* DHCP_REQUESTED_IP */
+ {"wins", OPTION_IP | OPTION_LIST, 0x2c}, /* DHCP_LEASE_TIME */
+ {"requestip", OPTION_IP, 0x32}, /* DHCP_OPTION_OVER */
+ {"lease", OPTION_U32, 0x33}, /* DHCP_MESSAGE_TYPE */
+ {"dhcptype", OPTION_U8, 0x35}, /* DHCP_SERVER_ID */
+ {"serverid", OPTION_IP, 0x36}, /* DHCP_PARAM_REQ */
+ {"message", OPTION_STRING, 0x38}, /* DHCP_MESSAGE */
+// TODO: 1) some options should not be parsed & passed to script -
+// maxsize sure should not, since it cannot appear in server responses!
+// grep for opt_name is fix the mess.
+// 2) Using fixed-sized char[] vector wastes space.
+ {"maxsize", OPTION_U16, 0x39}, /* DHCP_MAX_SIZE */
+ {"vendorclass", OPTION_STRING, 0x3C}, /* DHCP_VENDOR */
+ {"clientid", OPTION_STRING, 0x3D}, /* DHCP_CLIENT_ID */
{"tftp", OPTION_STRING, 0x42},
{"bootfile", OPTION_STRING, 0x43},
{"userclass", OPTION_STRING, 0x4D},
@@ -48,9 +53,10 @@ const struct dhcp_option dhcp_options[] = {
#endif
/* MSIE's "Web Proxy Autodiscovery Protocol" support */
{"wpad", OPTION_STRING, 0xfc},
- {"", 0x00, 0x00}
+ {} /* zero-padded terminating entry */
};
+
/* Lengths of the different option types */
const unsigned char option_lengths[] ALIGN1 = {
[OPTION_IP] = 4,