auto import from //depot/cupcake/@135843

1 files changed, 0 insertions, 349 deletions

diff --git a/showlease.c b/showlease.c
deleted file mode 100644
index 9bee4ab..0000000
--- a/showlease.c
+++ /dev/null
@@ -1,349 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <errno.h>
-#include <fcntl.h>
-
-#include "dhcp.h"
-#include "config.h"
-
-#define REQUEST	(1 << 0)
-#define UINT8	(1 << 1)
-#define UINT16	(1 << 2)
-#define SINT16	(1 << 3)
-#define UINT32	(1 << 4)
-#define SINT32	(1 << 5)
-#define IPV4	(1 << 6)
-#define STRING	(1 << 7)
-#define PAIR	(1 << 8)
-#define ARRAY	(1 << 9)
-#define RFC3361	(1 << 10)
-#define RFC3397	(1 << 11)
-#define RFC3442 (1 << 12)
-
-struct dhcp_opt {
-	uint8_t option;
-	int type;
-	const char *var;
-};
-
-static const struct dhcp_opt const dhcp_opts[] = {
-	{ 1,	IPV4 | REQUEST,	"subnet_mask" },
-	{ 2,	UINT32,		"time_offset" },
-	{ 3,	IPV4 | ARRAY | REQUEST,	"routers" },
-	{ 4,	IPV4 | ARRAY,	"time_servers" },
-	{ 5,	IPV4 | ARRAY,	"ien116_name_servers" },
-	{ 6,	IPV4 | ARRAY,	"domain_name_servers" },
-	{ 7,	IPV4 | ARRAY,	"log_servers" },
-	{ 8,	IPV4 | ARRAY,	"cookie_servers" },
-	{ 9, 	IPV4 | ARRAY,	"lpr_servers" },
-	{ 10,	IPV4 | ARRAY,	"impress_servers" },
-	{ 11,	IPV4 | ARRAY,	"resource_location_servers" },
-	{ 12,	STRING,		"host_name" },
-	{ 13,	UINT16,		"boot_size" },
-	{ 14,	STRING,		"merit_dump" },
-	{ 15,	STRING,		"domain_name" },
-	{ 16,	IPV4,		"swap_server" },
-	{ 17,	STRING,		"root_path" },
-	{ 18,	STRING,		"extensions_path" },
-	{ 19,	UINT8,		"ip_forwarding" },
-	{ 20,	UINT8,		"non_local_source_routing" },
-	{ 21,	IPV4 | ARRAY,	"policy_filter" },
-	{ 22,	SINT16,		"max_dgram_reassembly" },
-	{ 23,	UINT16,		"default_ip_ttl" },
-	{ 24,	UINT32,		"path_mtu_aging_timeout" },
-	{ 25,	UINT16 | ARRAY,	"path_mtu_plateau_table" },
-	{ 26,	UINT16,		"interface_mtu" },
-	{ 27,	UINT8,		"all_subnets_local" },
-	{ 28,	IPV4 | REQUEST,	"broadcast_address" },
-	{ 29,	UINT8,		"perform_mask_discovery" },
-	{ 30,	UINT8,		"mask_supplier" },
-	{ 31,	UINT8,		"router_discovery" },
-	{ 32,	IPV4,		"router_solicitation_address" },
-	{ 33,	IPV4 | ARRAY | REQUEST,	"static_routes" },
-	{ 34,	UINT8,		"trailer_encapsulation" },
-	{ 35, 	UINT32,		"arp_cache_timeout" },
-	{ 36,	UINT16,		"ieee802_3_encapsulation" },
-	{ 37,	UINT8,		"default_tcp_ttl" },
-	{ 38,	UINT32,		"tcp_keepalive_interval" },
-	{ 39,	UINT8,		"tcp_keepalive_garbage" },
-	{ 40,	STRING,		"nis_domain" },
-	{ 41,	IPV4 | ARRAY,	"nis_servers" },
-	{ 42,	IPV4 | ARRAY,	"ntp_servers" },
-	{ 43,	STRING,		"vendor_encapsulated_options" },
-	{ 44,	IPV4 | ARRAY,	"netbios_name_servers" },
-	{ 45,	IPV4,		"netbios_dd_server" },
-	{ 46,	UINT8,		"netbios_node_type" },
-	{ 47,	STRING,		"netbios_scope" },
-	{ 48,	IPV4 | ARRAY,	"font_servers" },
-	{ 49,	IPV4 | ARRAY,	"x_display_manager" },
-	{ 50, 	IPV4,		"dhcp_requested_address" },
-	{ 51,	UINT32 | REQUEST,	"dhcp_lease_time" },
-	{ 52,	UINT8,		"dhcp_option_overload" },
-	{ 53,	UINT8,		"dhcp_message_type" },
-	{ 54,	IPV4,		"dhcp_server_identifier" },
-	{ 55,	UINT8 | ARRAY,	"dhcp_parameter_request_list" },
-	{ 56,	STRING,		"dhcp_message" },
-	{ 57,	UINT16,		"dhcp_max_message_size" },
-	{ 58,	UINT32 | REQUEST,	"dhcp_renewal_time" },
-	{ 59,	UINT32 | REQUEST,	"dhcp_rebinding_time" },
-	{ 64,	STRING,		"nisplus_domain" },
-	{ 65,	IPV4 | ARRAY,	"nisplus_servers" },
-	{ 66,	STRING,		"tftp_server_name" },
-	{ 67,	STRING,		"bootfile_name" },
-	{ 68,	IPV4 | ARRAY,	"mobile_ip_home_agent" },
-	{ 69,	IPV4 | ARRAY,	"smtp_server" },
-	{ 70,	IPV4 | ARRAY,	"pop_server" },
-	{ 71,	IPV4 | ARRAY,	"nntp_server" },
-	{ 72,	IPV4 | ARRAY,	"www_server" },
-	{ 73,	IPV4 | ARRAY,	"finger_server" },
-	{ 74,	IPV4 | ARRAY,	"irc_server" },
-	{ 75,	IPV4 | ARRAY,	"streettalk_server" },
-	{ 76,	IPV4 | ARRAY,	"streettalk_directory_assistance_server" },
-	{ 77,	STRING,		"user_class" },
-	{ 85,	IPV4 | ARRAY,	"nds_servers" },
-	{ 86,	STRING,		"nds_tree_name" },
-	{ 87,	STRING,		"nds_context" },
-	{ 88,	STRING | RFC3397,	"bcms_controller_names" },
-	{ 89,	IPV4 | ARRAY,	"bcms_controller_address" },
-	{ 91,	UINT32,		"client_last_transaction_time" },
-	{ 92,	IPV4 | ARRAY,	"associated_ip" },
-	{ 98,	STRING,		"uap_servers" },
-	{ 112,	IPV4 | ARRAY,	"netinfo_server_address" },
-	{ 113,	STRING,		"netinfo_server_tag" },
-	{ 114,	STRING,		"default_url" },
-	{ 118,	IPV4,		"subnet_selection" },
-	{ 119,	STRING | RFC3397,	"domain_search" },
-	{ 121,  RFC3442 | REQUEST,	"classless_static_routes" },
-	{ 249,  RFC3442,	"ms-classless_static_routes" },
-	{ 0, 0, NULL }
-};
-
-struct dhcp_message *
-get_lease(const char *leasefile)
-{
-	int fd;
-	struct dhcp_message *dhcp;
-	ssize_t bytes;
-
-	fd = open(leasefile, O_RDONLY);
-	if (fd == -1)
-		return NULL;
-	dhcp = malloc(sizeof(*dhcp));
-	memset(dhcp, 0, sizeof(*dhcp));
-	bytes = read(fd, dhcp, sizeof(*dhcp));
-	close(fd);
-	if (bytes < 0) {
-		free(dhcp);
-		dhcp = NULL;
-	}
-	return dhcp;
-}
-
-static uint8_t *dhcp_opt_buffer = NULL;
-
-static int
-valid_length(uint8_t option, int dl, int *type)
-{
-	const struct dhcp_opt *opt;
-	ssize_t sz;
-
-	if (dl == 0)
-		return -1;
-
-	for (opt = dhcp_opts; opt->option; opt++) {
-		if (opt->option != option)
-			continue;
-
-		if (type)
-			*type = opt->type;
-
-		if (opt->type == 0 || opt->type & STRING || opt->type & RFC3442)
-			return 0;
-
-		sz = 0;
-		if (opt->type & UINT32 || opt->type & IPV4)
-			sz = sizeof(uint32_t);
-		if (opt->type & UINT16)
-			sz = sizeof(uint16_t);
-		if (opt->type & UINT8)
-			sz = sizeof(uint8_t);
-		if (opt->type & IPV4 || opt->type & ARRAY)
-			return dl % sz;
-		return (dl == sz ? 0 : -1);
-	}
-
-	/* unknown option, so let it pass */
-	return 0;
-}
-
-static void
-free_option_buffer(void)
-{
-	free(dhcp_opt_buffer);
-}
-
-
-#define get_option_raw(dhcp, opt) get_option(dhcp, opt, NULL, NULL)
-static const uint8_t *
-get_option(const struct dhcp_message *dhcp, uint8_t opt, int *len, int *type)
-{
-	const uint8_t *p = dhcp->options;
-	const uint8_t *e = p + sizeof(dhcp->options);
-	uint8_t l, ol = 0;
-	uint8_t o = 0;
-	uint8_t overl = 0;
-	uint8_t *bp = NULL;
-	const uint8_t *op = NULL;
-	int bl = 0;
-
-	while (p < e) {
-		o = *p++;
-		if (o == opt) {
-			if (op) {
-				if (!dhcp_opt_buffer) {
-					dhcp_opt_buffer = malloc(sizeof(struct dhcp_message));
-					atexit(free_option_buffer);
-				}
-				if (!bp) 
-					bp = dhcp_opt_buffer;
-				memcpy(bp, op, ol);
-				bp += ol;
-			}
-			ol = *p;
-			op = p + 1;
-			bl += ol;
-		}
-		switch (o) {
-		case DHO_PAD:
-			continue;
-		case DHO_END:
-			if (overl & 1) {
-				/* bit 1 set means parse boot file */
-				overl &= ~1;
-				p = dhcp->bootfile;
-				e = p + sizeof(dhcp->bootfile);
-			} else if (overl & 2) {
-				/* bit 2 set means parse server name */
-				overl &= ~2;
-				p = dhcp->servername;
-				e = p + sizeof(dhcp->servername);
-			} else
-				goto exit;
-			break;
-		case DHO_OPTIONSOVERLOADED:
-			/* Ensure we only get this option once */
-			if (!overl)
-				overl = p[1];
-			break;
-		}
-		l = *p++;
-		p += l;
-	}
-
-exit:
-	if (valid_length(o, bl, type) == -1) {
-		errno = EINVAL;
-		return NULL;
-	}
-	if (len)
-		*len = bl;
-	if (bp) {
-		memcpy(bp, op, ol);
-		return (const uint8_t *)&dhcp_opt_buffer;
-	}
-	if (op)
-		return op;
-	errno = ENOENT;
-	return NULL;
-}
-
-int
-get_option_addr(uint32_t *a, const struct dhcp_message *dhcp, uint8_t option)
-{
-	const uint8_t *p = get_option_raw(dhcp, option);
-
-	if (!p)
-		return -1;
-	memcpy(a, p, sizeof(*a));
-	return 0;
-}
-
-int
-get_option_uint32(uint32_t *i, const struct dhcp_message *dhcp, uint8_t option)
-{
-	uint32_t a;
-
-	if (get_option_addr(&a, dhcp, option) == -1)
-		return -1;
-
-	*i = ntohl(a);
-	return 0;
-}
-
-uint32_t
-get_netmask(uint32_t addr)
-{
-	uint32_t dst;
-
-	if (addr == 0)
-		return 0;
-
-	dst = htonl(addr);
-	if (IN_CLASSA(dst))
-		return ntohl(IN_CLASSA_NET);
-	if (IN_CLASSB (dst))
-		return ntohl(IN_CLASSB_NET);
-	if (IN_CLASSC (dst))
-		return ntohl(IN_CLASSC_NET);
-
-	return 0;
-}
-
-void showlease(struct dhcp_lease *lease)
-{
-    printf("addr:      %s\n", inet_ntoa(lease->addr));
-    printf("net:       %s\n", inet_ntoa(lease->net));
-    printf("leasetime: %d\n", lease->leasetime);
-    printf("renew:     %d\n", lease->renewaltime);
-    printf("rebind:    %d\n", lease->rebindtime);
-    printf("server:    %s\n", inet_ntoa(lease->server));
-}
-#define MAX_LEASETIME 2147460
-
-int
-main(int argc, char *argv[])
-{
-    struct dhcp_message *dhcp;
-    struct dhcp_lease *lease;
-    char leasefile[PATH_MAX];
-
-    if (argc < 2) {
-        fprintf(stderr, "Usage: %s <interface>\n", argv[0]);
-        exit(1);
-    }
-    snprintf(leasefile, PATH_MAX, LEASEFILE, argv[1]);
-    if ((dhcp = get_lease(leasefile)) == NULL) {
-        fprintf(stderr, "Couldn't read lease file: %s\n", strerror(errno));
-        exit(1);
-    }
-    lease = malloc(sizeof(*lease));
-    lease->frominfo = 0;
-    lease->addr.s_addr = dhcp->yiaddr;
-
-    if (get_option_addr(&lease->net.s_addr, dhcp, DHO_SUBNETMASK) == -1)
-        lease->net.s_addr = get_netmask(dhcp->yiaddr);
-    if (get_option_uint32(&lease->leasetime, dhcp, DHO_LEASETIME) != 0)
-        lease->leasetime = DEFAULT_LEASETIME;
-    get_option_addr(&lease->server.s_addr, dhcp, DHO_SERVERID);
-    /* Dm: limit lease time value to avoid negative numbers when
-       converting to milliseconds */		
-    if ((lease->leasetime != ~0U) && (lease->leasetime > MAX_LEASETIME))
-        lease->leasetime = MAX_LEASETIME;
-    if (get_option_uint32(&lease->renewaltime, dhcp, DHO_RENEWALTIME) != 0)
-        lease->renewaltime = 0;
-    if (get_option_uint32(&lease->rebindtime, dhcp, DHO_REBINDTIME) != 0)
-        lease->rebindtime = 0;
-    showlease(lease);
-    free(lease);
-    return 0;
-}