aboutsummaryrefslogtreecommitdiff
path: root/usr.sbin/bootpd/dovend.c
diff options
context:
space:
mode:
Diffstat (limited to 'usr.sbin/bootpd/dovend.c')
-rw-r--r--usr.sbin/bootpd/dovend.c413
1 files changed, 0 insertions, 413 deletions
diff --git a/usr.sbin/bootpd/dovend.c b/usr.sbin/bootpd/dovend.c
deleted file mode 100644
index ba6ab288b8b3..000000000000
--- a/usr.sbin/bootpd/dovend.c
+++ /dev/null
@@ -1,413 +0,0 @@
-/*
- * dovend.c : Inserts all but the first few vendor options.
- */
-
-#include <sys/types.h>
-
-#include <netinet/in.h>
-#include <arpa/inet.h> /* inet_ntoa */
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <errno.h>
-#include <syslog.h>
-
-#ifndef USE_BFUNCS
-# include <memory.h>
-/* Yes, memcpy is OK here (no overlapped copies). */
-# define bcopy(a,b,c) memcpy(b,a,c)
-# define bzero(p,l) memset(p,0,l)
-# define bcmp(a,b,c) memcmp(a,b,c)
-# define index strchr
-#endif
-
-#include "bootp.h"
-#include "bootpd.h"
-#include "report.h"
-#include "dovend.h"
-
-#ifdef __STDC__
-#define P(args) args
-#else
-#define P(args) ()
-#endif
-
-PRIVATE int insert_generic P((struct shared_bindata *, byte **, int *));
-
-/*
- * Insert the 2nd part of the options into an option buffer.
- * Return amount of space used.
- *
- * This inserts everything EXCEPT:
- * magic cookie, subnet mask, gateway, bootsize, extension file
- * Those are handled separately (in bootpd.c) to allow this function
- * to be shared between bootpd and bootpef.
- *
- * When an "extension file" is in use, the options inserted by
- * this function go into the exten_file, not the bootp response.
- */
-
-int
-dovend_rfc1497(hp, buf, len)
- struct host *hp;
- byte *buf;
- int len;
-{
- int bytesleft = len;
- byte *vp = buf;
- char *tmpstr;
-
- static char noroom[] = "%s: No room for \"%s\" option";
-#define NEED(LEN, MSG) do \
- if (bytesleft < (LEN)) { \
- report(LOG_NOTICE, noroom, \
- hp->hostname->string, MSG); \
- return (vp - buf); \
- } while (0)
-
- /*
- * Note that the following have already been inserted:
- * magic_cookie, subnet_mask, gateway, bootsize
- *
- * The remaining options are inserted in order of importance.
- * (Of course the importance of each is a matter of opinion.)
- * The option insertion order should probably be configurable.
- *
- * This is the order used in the NetBSD version. Can anyone
- * explain why the time_offset and swap_server are first?
- * Also, why is the hostname so far down the list? -gwr
- */
-
- if (hp->flags.time_offset) {
- NEED(6, "to");
- *vp++ = TAG_TIME_OFFSET;/* -1 byte */
- *vp++ = 4; /* -1 byte */
- insert_u_long(htonl(hp->time_offset), &vp); /* -4 bytes */
- bytesleft -= 6;
- }
- /*
- * swap server, root path, dump path
- */
- if (hp->flags.swap_server) {
- NEED(6, "sw");
- /* There is just one SWAP_SERVER, so it is not an iplist. */
- *vp++ = TAG_SWAP_SERVER;/* -1 byte */
- *vp++ = 4; /* -1 byte */
- insert_u_long(hp->swap_server.s_addr, &vp); /* -4 bytes */
- bytesleft -= 6; /* Fix real count */
- }
- if (hp->flags.root_path) {
- /*
- * Check for room for root_path. Add 2 to account for
- * TAG_ROOT_PATH and length.
- */
- len = strlen(hp->root_path->string);
- NEED((len + 2), "rp");
- *vp++ = TAG_ROOT_PATH;
- *vp++ = (byte) (len & 0xFF);
- bcopy(hp->root_path->string, vp, len);
- vp += len;
- bytesleft -= len + 2;
- }
- if (hp->flags.dump_file) {
- /*
- * Check for room for dump_file. Add 2 to account for
- * TAG_DUMP_FILE and length.
- */
- len = strlen(hp->dump_file->string);
- NEED((len + 2), "df");
- *vp++ = TAG_DUMP_FILE;
- *vp++ = (byte) (len & 0xFF);
- bcopy(hp->dump_file->string, vp, len);
- vp += len;
- bytesleft -= len + 2;
- }
- /*
- * DNS server and domain
- */
- if (hp->flags.domain_server) {
- if (insert_ip(TAG_DOMAIN_SERVER,
- hp->domain_server,
- &vp, &bytesleft))
- NEED(8, "ds");
- }
- if (hp->flags.domain_name) {
- /*
- * Check for room for domain_name. Add 2 to account for
- * TAG_DOMAIN_NAME and length.
- */
- len = strlen(hp->domain_name->string);
- NEED((len + 2), "dn");
- *vp++ = TAG_DOMAIN_NAME;
- *vp++ = (byte) (len & 0xFF);
- bcopy(hp->domain_name->string, vp, len);
- vp += len;
- bytesleft -= len + 2;
- }
- /*
- * NIS (YP) server and domain
- */
- if (hp->flags.nis_server) {
- if (insert_ip(TAG_NIS_SERVER,
- hp->nis_server,
- &vp, &bytesleft))
- NEED(8, "ds");
- }
- if (hp->flags.nis_domain) {
- /*
- * Check for room for nis_domain. Add 2 to account for
- * TAG_NIS_DOMAIN and length.
- */
- len = strlen(hp->nis_domain->string);
- NEED((len + 2), "dn");
- *vp++ = TAG_NIS_DOMAIN;
- *vp++ = (byte) (len & 0xFF);
- bcopy(hp->nis_domain->string, vp, len);
- vp += len;
- bytesleft -= len + 2;
- }
- /* IEN 116 name server */
- if (hp->flags.name_server) {
- if (insert_ip(TAG_NAME_SERVER,
- hp->name_server,
- &vp, &bytesleft))
- NEED(8, "ns");
- }
- if (hp->flags.rlp_server) {
- if (insert_ip(TAG_RLP_SERVER,
- hp->rlp_server,
- &vp, &bytesleft))
- NEED(8, "rl");
- }
- /* Time server (RFC 868) */
- if (hp->flags.time_server) {
- if (insert_ip(TAG_TIME_SERVER,
- hp->time_server,
- &vp, &bytesleft))
- NEED(8, "ts");
- }
- /* NTP (time) Server (RFC 1129) */
- if (hp->flags.ntp_server) {
- if (insert_ip(TAG_NTP_SERVER,
- hp->ntp_server,
- &vp, &bytesleft))
- NEED(8, "ts");
- }
- /*
- * I wonder: If the hostname were "promoted" into the BOOTP
- * response part, might these "extension" files possibly be
- * shared between several clients?
- *
- * Also, why not just use longer BOOTP packets with all the
- * additional length used as option data. This bootpd version
- * already supports that feature by replying with the same
- * packet length as the client request packet. -gwr
- */
- if (hp->flags.name_switch && hp->flags.send_name) {
- /*
- * Check for room for hostname. Add 2 to account for
- * TAG_HOST_NAME and length.
- */
- len = strlen(hp->hostname->string);
-#if 0
- /*
- * XXX - Too much magic. The user can always set the hostname
- * to the short version in the bootptab file. -gwr
- */
- if ((len + 2) > bytesleft) {
- /*
- * Not enough room for full (domain-qualified) hostname, try
- * stripping it down to just the first field (host).
- */
- tmpstr = hp->hostname->string;
- len = 0;
- while (*tmpstr && (*tmpstr != '.')) {
- tmpstr++;
- len++;
- }
- }
-#endif
- NEED((len + 2), "hn");
- *vp++ = TAG_HOST_NAME;
- *vp++ = (byte) (len & 0xFF);
- bcopy(hp->hostname->string, vp, len);
- vp += len;
- bytesleft -= len + 2;
- }
- /*
- * The rest of these are less important, so they go last.
- */
- if (hp->flags.lpr_server) {
- if (insert_ip(TAG_LPR_SERVER,
- hp->lpr_server,
- &vp, &bytesleft))
- NEED(8, "lp");
- }
- if (hp->flags.cookie_server) {
- if (insert_ip(TAG_COOKIE_SERVER,
- hp->cookie_server,
- &vp, &bytesleft))
- NEED(8, "cs");
- }
- if (hp->flags.log_server) {
- if (insert_ip(TAG_LOG_SERVER,
- hp->log_server,
- &vp, &bytesleft))
- NEED(8, "lg");
- }
- /*
- * XXX - Add new tags here (to insert options)
- */
- if (hp->flags.generic) {
- if (insert_generic(hp->generic, &vp, &bytesleft))
- NEED(64, "(generic)");
- }
- /*
- * The end marker is inserted by the caller.
- */
- return (vp - buf);
-#undef NEED
-} /* dovend_rfc1497 */
-
-
-
-/*
- * Insert a tag value, a length value, and a list of IP addresses into the
- * memory buffer indirectly pointed to by "dest". "tag" is the RFC1048 tag
- * number to use, "iplist" is a pointer to a list of IP addresses
- * (struct in_addr_list), and "bytesleft" points to an integer which
- * indicates the size of the "dest" buffer.
- *
- * Return zero if everything fits.
- *
- * This is used to fill the vendor-specific area of a bootp packet in
- * conformance to RFC1048.
- */
-
-int
-insert_ip(tag, iplist, dest, bytesleft)
- byte tag;
- struct in_addr_list *iplist;
- byte **dest;
- int *bytesleft;
-{
- struct in_addr *addrptr;
- unsigned addrcount = 1;
- byte *d;
-
- if (iplist == NULL)
- return (0);
-
- if (*bytesleft >= 6) {
- d = *dest; /* Save pointer for later */
- **dest = tag;
- (*dest) += 2;
- (*bytesleft) -= 2; /* Account for tag and length */
- addrptr = iplist->addr;
- addrcount = iplist->addrcount;
- while ((*bytesleft >= 4) && (addrcount > 0)) {
- insert_u_long(addrptr->s_addr, dest);
- addrptr++;
- addrcount--;
- (*bytesleft) -= 4; /* Four bytes per address */
- }
- d[1] = (byte) ((*dest - d - 2) & 0xFF);
- }
- return (addrcount);
-}
-
-
-
-/*
- * Insert generic data into a bootp packet. The data is assumed to already
- * be in RFC1048 format. It is inserted using a first-fit algorithm which
- * attempts to insert as many tags as possible. Tags and data which are
- * too large to fit are skipped; any remaining tags are tried until they
- * have all been exhausted.
- * Return zero if everything fits.
- */
-
-static int
-insert_generic(gendata, buff, bytesleft)
- struct shared_bindata *gendata;
- byte **buff;
- int *bytesleft;
-{
- byte *srcptr;
- int length, numbytes;
- int skipped = 0;
-
- if (gendata == NULL)
- return (0);
-
- srcptr = gendata->data;
- length = gendata->length;
- while ((length > 0) && (*bytesleft > 0)) {
- switch (*srcptr) {
- case TAG_END:
- length = 0; /* Force an exit on next iteration */
- break;
- case TAG_PAD:
- *(*buff)++ = *srcptr++;
- (*bytesleft)--;
- length--;
- break;
- default:
- numbytes = srcptr[1] + 2;
- if (*bytesleft < numbytes)
- skipped += numbytes;
- else {
- bcopy(srcptr, *buff, numbytes);
- (*buff) += numbytes;
- (*bytesleft) -= numbytes;
- }
- srcptr += numbytes;
- length -= numbytes;
- break;
- }
- } /* while */
- return (skipped);
-}
-
-/*
- * Insert the unsigned long "value" into memory starting at the byte
- * pointed to by the byte pointer (*dest). (*dest) is updated to
- * point to the next available byte.
- *
- * Since it is desirable to internally store network addresses in network
- * byte order (in struct in_addr's), this routine expects longs to be
- * passed in network byte order.
- *
- * However, due to the nature of the main algorithm, the long must be in
- * host byte order, thus necessitating the use of ntohl() first.
- */
-
-void
-insert_u_long(value, dest)
- u_int32 value;
- byte **dest;
-{
- byte *temp;
- int n;
-
- value = ntohl(value); /* Must use host byte order here */
- temp = (*dest += 4);
- for (n = 4; n > 0; n--) {
- *--temp = (byte) (value & 0xFF);
- value >>= 8;
- }
- /* Final result is network byte order */
-}
-
-/*
- * Local Variables:
- * tab-width: 4
- * c-indent-level: 4
- * c-argdecl-indent: 4
- * c-continued-statement-offset: 4
- * c-continued-brace-offset: -4
- * c-label-offset: -4
- * c-brace-offset: 0
- * End:
- */
generated by cgit v1.2.3 (git 2.25.1) at 2025-04-13 21:52:05 +0000