1 files changed, 0 insertions, 737 deletions

diff --git a/lib/libradius/radlib.c b/lib/libradius/radlib.c
deleted file mode 100644
index 2825c3dae786..000000000000
--- a/lib/libradius/radlib.c
+++ /dev/null
@@ -1,737 +0,0 @@
-/*-
- * Copyright 1998 Juniper Networks, Inc.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	$FreeBSD$
- */
-
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <sys/time.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-
-#include <errno.h>
-#include <md5.h>
-#include <netdb.h>
-#include <stdarg.h>
-#include <stddef.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
-#include "radlib_private.h"
-
-static void	 clear_password(struct rad_handle *);
-static void	 generr(struct rad_handle *, const char *, ...)
-		    __printflike(2, 3);
-static void	 insert_scrambled_password(struct rad_handle *, int);
-static int	 is_valid_response(struct rad_handle *, int,
-		    const struct sockaddr_in *);
-static int	 put_password_attr(struct rad_handle *, int,
-		    const void *, size_t);
-static int	 put_raw_attr(struct rad_handle *, int,
-		    const void *, size_t);
-static int	 split(char *, char *[], int, char *, size_t);
-
-static void
-clear_password(struct rad_handle *h)
-{
-	if (h->pass_len != 0) {
-		memset(h->pass, 0, h->pass_len);
-		h->pass_len = 0;
-		h->pass_pos = 0;
-	}
-}
-
-static void
-generr(struct rad_handle *h, const char *format, ...)
-{
-	va_list		 ap;
-
-	va_start(ap, format);
-	vsnprintf(h->errmsg, ERRSIZE, format, ap);
-	va_end(ap);
-}
-
-static void
-insert_scrambled_password(struct rad_handle *h, int srv)
-{
-	MD5_CTX ctx;
-	unsigned char md5[16];
-	const struct rad_server *srvp;
-	int padded_len;
-	int pos;
-
-	srvp = &h->servers[srv];
-	padded_len = h->pass_len == 0 ? 16 : (h->pass_len+15) & ~0xf;
-
-	memcpy(md5, &h->request[POS_AUTH], LEN_AUTH);
-	for (pos = 0;  pos < padded_len;  pos += 16) {
-		int i;
-
-		/* Calculate the new scrambler */
-		MD5Init(&ctx);
-		MD5Update(&ctx, srvp->secret, strlen(srvp->secret));
-		MD5Update(&ctx, md5, 16);
-		MD5Final(md5, &ctx);
-
-		/*
-		 * Mix in the current chunk of the password, and copy
-		 * the result into the right place in the request.  Also
-		 * modify the scrambler in place, since we will use this
-		 * in calculating the scrambler for next time.
-		 */
-		for (i = 0;  i < 16;  i++)
-			h->request[h->pass_pos + pos + i] =
-			    md5[i] ^= h->pass[pos + i];
-	}
-}
-
-/*
- * Return true if the current response is valid for a request to the
- * specified server.
- */
-static int
-is_valid_response(struct rad_handle *h, int srv,
-    const struct sockaddr_in *from)
-{
-	MD5_CTX ctx;
-	unsigned char md5[16];
-	const struct rad_server *srvp;
-	int len;
-
-	srvp = &h->servers[srv];
-
-	/* Check the source address */
-	if (from->sin_family != srvp->addr.sin_family ||
-	    from->sin_addr.s_addr != srvp->addr.sin_addr.s_addr ||
-	    from->sin_port != srvp->addr.sin_port)
-		return 0;
-
-	/* Check the message length */
-	if (h->resp_len < POS_ATTRS)
-		return 0;
-	len = h->response[POS_LENGTH] << 8 | h->response[POS_LENGTH+1];
-	if (len > h->resp_len)
-		return 0;
-
-	/* Check the response authenticator */
-	MD5Init(&ctx);
-	MD5Update(&ctx, &h->response[POS_CODE], POS_AUTH - POS_CODE);
-	MD5Update(&ctx, &h->request[POS_AUTH], LEN_AUTH);
-	MD5Update(&ctx, &h->response[POS_ATTRS], len - POS_ATTRS);
-	MD5Update(&ctx, srvp->secret, strlen(srvp->secret));
-	MD5Final(md5, &ctx);
-	if (memcmp(&h->response[POS_AUTH], md5, sizeof md5) != 0)
-		return 0;
-
-	return 1;
-}
-
-static int
-put_password_attr(struct rad_handle *h, int type, const void *value, size_t len)
-{
-	int padded_len;
-	int pad_len;
-
-	if (h->pass_pos != 0) {
-		generr(h, "Multiple User-Password attributes specified");
-		return -1;
-	}
-	if (len > PASSSIZE)
-		len = PASSSIZE;
-	padded_len = len == 0 ? 16 : (len+15) & ~0xf;
-	pad_len = padded_len - len;
-
-	/*
-	 * Put in a place-holder attribute containing all zeros, and
-	 * remember where it is so we can fill it in later.
-	 */
-	clear_password(h);
-	put_raw_attr(h, type, h->pass, padded_len);
-	h->pass_pos = h->req_len - padded_len;
-
-	/* Save the cleartext password, padded as necessary */
-	memcpy(h->pass, value, len);
-	h->pass_len = len;
-	memset(h->pass + len, 0, pad_len);
-	return 0;
-}
-
-static int
-put_raw_attr(struct rad_handle *h, int type, const void *value, size_t len)
-{
-	if (len > 253) {
-		generr(h, "Attribute too long");
-		return -1;
-	}
-	if (h->req_len + 2 + len > MSGSIZE) {
-		generr(h, "Maximum message length exceeded");
-		return -1;
-	}
-	h->request[h->req_len++] = type;
-	h->request[h->req_len++] = len + 2;
-	memcpy(&h->request[h->req_len], value, len);
-	h->req_len += len;
-	return 0;
-}
-
-int
-rad_add_server(struct rad_handle *h, const char *host, int port,
-    const char *secret, int timeout, int tries)
-{
-	struct rad_server *srvp;
-
-	if (h->num_servers >= MAXSERVERS) {
-		generr(h, "Too many RADIUS servers specified");
-		return -1;
-	}
-	srvp = &h->servers[h->num_servers];
-
-	memset(&srvp->addr, 0, sizeof srvp->addr);
-	srvp->addr.sin_len = sizeof srvp->addr;
-	srvp->addr.sin_family = AF_INET;
-	if (!inet_aton(host, &srvp->addr.sin_addr)) {
-		struct hostent *hent;
-
-		if ((hent = gethostbyname(host)) == NULL) {
-			generr(h, "%s: host not found", host);
-			return -1;
-		}
-		memcpy(&srvp->addr.sin_addr, hent->h_addr,
-		    sizeof srvp->addr.sin_addr);
-	}
-	if (port != 0)
-		srvp->addr.sin_port = htons(port);
-	else {
-		struct servent *sent;
-
-		srvp->addr.sin_port =
-		    (sent = getservbyname("radius", "udp")) != NULL ?
-			sent->s_port : htons(RADIUS_PORT);
-	}
-	if ((srvp->secret = strdup(secret)) == NULL) {
-		generr(h, "Out of memory");
-		return -1;
-	}
-	srvp->timeout = timeout;
-	srvp->max_tries = tries;
-	srvp->num_tries = 0;
-	h->num_servers++;
-	return 0;
-}
-
-void
-rad_close(struct rad_handle *h)
-{
-	int srv;
-
-	if (h->fd != -1)
-		close(h->fd);
-	for (srv = 0;  srv < h->num_servers;  srv++) {
-		memset(h->servers[srv].secret, 0,
-		    strlen(h->servers[srv].secret));
-		free(h->servers[srv].secret);
-	}
-	clear_password(h);
-	free(h);
-}
-
-int
-rad_config(struct rad_handle *h, const char *path)
-{
-	FILE *fp;
-	char buf[MAXCONFLINE];
-	int linenum;
-	int retval;
-
-	if (path == NULL)
-		path = PATH_RADIUS_CONF;
-	if ((fp = fopen(path, "r")) == NULL) {
-		generr(h, "Cannot open \"%s\": %s", path, strerror(errno));
-		return -1;
-	}
-	retval = 0;
-	linenum = 0;
-	while (fgets(buf, sizeof buf, fp) != NULL) {
-		int len;
-		char *fields[4];
-		int nfields;
-		char msg[ERRSIZE];
-		char *host;
-		char *port_str;
-		char *secret;
-		char *timeout_str;
-		char *maxtries_str;
-		char *end;
-		unsigned long timeout;
-		unsigned long maxtries;
-		int port;
-
-		linenum++;
-		len = strlen(buf);
-		/* We know len > 0, else fgets would have returned NULL. */
-		if (buf[len - 1] != '\n') {
-			if (len == sizeof buf - 1)
-				generr(h, "%s:%d: line too long", path,
-				    linenum);
-			else
-				generr(h, "%s:%d: missing newline", path,
-				    linenum);
-			retval = -1;
-			break;
-		}
-		buf[len - 1] = '\0';
-
-		/* Extract the fields from the line. */
-		nfields = split(buf, fields, 4, msg, sizeof msg);
-		if (nfields == -1) {
-			generr(h, "%s:%d: %s", path, linenum, msg);
-			retval = -1;
-			break;
-		}
-		if (nfields == 0)
-			continue;
-		if (nfields < 2) {
-			generr(h, "%s:%d: missing shared secret", path,
-			    linenum);
-			retval = -1;
-			break;
-		}
-		host = fields[0];
-		secret = fields[1];
-		timeout_str = fields[2];
-		maxtries_str = fields[3];
-
-		/* Parse and validate the fields. */
-		host = strtok(host, ":");
-		port_str = strtok(NULL, ":");
-		if (port_str != NULL) {
-			port = strtoul(port_str, &end, 10);
-			if (*end != '\0') {
-				generr(h, "%s:%d: invalid port", path,
-				    linenum);
-				retval = -1;
-				break;
-			}
-		} else
-			port = 0;
-		if (timeout_str != NULL) {
-			timeout = strtoul(timeout_str, &end, 10);
-			if (*end != '\0') {
-				generr(h, "%s:%d: invalid timeout", path,
-				    linenum);
-				retval = -1;
-				break;
-			}
-		} else
-			timeout = TIMEOUT;
-		if (maxtries_str != NULL) {
-			maxtries = strtoul(maxtries_str, &end, 10);
-			if (*end != '\0') {
-				generr(h, "%s:%d: invalid maxtries", path,
-				    linenum);
-				retval = -1;
-				break;
-			}
-		} else
-			maxtries = MAXTRIES;
-
-		if (rad_add_server(h, host, port, secret, timeout, maxtries) ==
-		    -1) {
-			char msg[ERRSIZE];
-
-			strcpy(msg, h->errmsg);
-			generr(h, "%s:%d: %s", path, linenum, msg);
-			retval = -1;
-			break;
-		}
-	}
-	/* Clear out the buffer to wipe a possible copy of a shared secret */
-	memset(buf, 0, sizeof buf);
-	fclose(fp);
-	return retval;
-}
-
-int
-rad_create_request(struct rad_handle *h, int code)
-{
-	int i;
-
-	h->request[POS_CODE] = code;
-	h->request[POS_IDENT] = ++h->ident;
-	/* Create a random authenticator */
-	for (i = 0;  i < LEN_AUTH;  i += 2) {
-		long r;
-		r = random();
-		h->request[POS_AUTH+i] = r;
-		h->request[POS_AUTH+i+1] = r >> 8;
-	}
-	h->req_len = POS_ATTRS;
-	clear_password(h);
-	return 0;
-}
-
-struct in_addr
-rad_cvt_addr(const void *data)
-{
-	struct in_addr value;
-
-	memcpy(&value.s_addr, data, sizeof value.s_addr);
-	return value;
-}
-
-u_int32_t
-rad_cvt_int(const void *data)
-{
-	u_int32_t value;
-
-	memcpy(&value, data, sizeof value);
-	return ntohl(value);
-}
-
-char *
-rad_cvt_string(const void *data, size_t len)
-{
-	char *s;
-
-	s = malloc(len + 1);
-	if (s != NULL) {
-		memcpy(s, data, len);
-		s[len] = '\0';
-	}
-	return s;
-}
-
-/*
- * Returns the attribute type.  If none are left, returns 0.  On failure,
- * returns -1.
- */
-int
-rad_get_attr(struct rad_handle *h, const void **value, size_t *len)
-{
-	int type;
-
-	if (h->resp_pos >= h->resp_len)
-		return 0;
-	if (h->resp_pos + 2 > h->resp_len) {
-		generr(h, "Malformed attribute in response");
-		return -1;
-	}
-	type = h->response[h->resp_pos++];
-	*len = h->response[h->resp_pos++] - 2;
-	if (h->resp_pos + *len > h->resp_len) {
-		generr(h, "Malformed attribute in response");
-		return -1;
-	}
-	*value = &h->response[h->resp_pos];
-	h->resp_pos += *len;
-	return type;
-}
-
-/*
- * Create and initialize a rad_handle structure, and return it to the
- * caller.  Can fail only if the necessary memory cannot be allocated.
- * In that case, it returns NULL.
- */
-struct rad_handle *
-rad_open(void)
-{
-	struct rad_handle *h;
-
-	h = (struct rad_handle *)malloc(sizeof(struct rad_handle));
-	if (h != NULL) {
-		srandomdev();
-		h->fd = -1;
-		h->num_servers = 0;
-		h->ident = random();
-		h->errmsg[0] = '\0';
-		memset(h->pass, 0, sizeof h->pass);
-		h->pass_len = 0;
-		h->pass_pos = 0;
-	}
-	return h;
-}
-
-int
-rad_put_addr(struct rad_handle *h, int type, struct in_addr addr)
-{
-	return rad_put_attr(h, type, &addr.s_addr, sizeof addr.s_addr);
-}
-
-int
-rad_put_attr(struct rad_handle *h, int type, const void *value, size_t len)
-{
-	return type == RAD_USER_PASSWORD ?
-	    put_password_attr(h, type, value, len) :
-	    put_raw_attr(h, type, value, len);
-}
-
-int
-rad_put_int(struct rad_handle *h, int type, u_int32_t value)
-{
-	u_int32_t nvalue;
-
-	nvalue = htonl(value);
-	return rad_put_attr(h, type, &nvalue, sizeof nvalue);
-}
-
-int
-rad_put_string(struct rad_handle *h, int type, const char *str)
-{
-	return rad_put_attr(h, type, str, strlen(str));
-}
-
-/*
- * Returns the response type code on success, or -1 on failure.
- */
-int
-rad_send_request(struct rad_handle *h)
-{
-	int total_tries;
-	int try;
-	int srv;
-	int n;
-	int got_valid_response;
-
-	/* Make sure we have a socket to use */
-	if (h->fd == -1) {
-		struct sockaddr_in sin;
-
-		if ((h->fd = socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP)) == -1) {
-			generr(h, "Cannot create socket: %s", strerror(errno));
-			return -1;
-		}
-		memset(&sin, 0, sizeof sin);
-		sin.sin_len = sizeof sin;
-		sin.sin_family = AF_INET;
-		sin.sin_addr.s_addr = INADDR_ANY;
-		sin.sin_port = htons(0);
-		if (bind(h->fd, (const struct sockaddr *)&sin,
-		    sizeof sin) == -1) {
-			generr(h, "bind: %s", strerror(errno));
-			close(h->fd);
-			h->fd = -1;
-			return -1;
-		}
-	}
-
-	/* Make sure the user gave us a password */
-	if (h->pass_pos == 0) {
-		generr(h, "No User-Password attribute given");
-		return -1;
-	}
-
-	/* Fill in the length field in the message */
-	h->request[POS_LENGTH] = h->req_len >> 8;
-	h->request[POS_LENGTH+1] = h->req_len;
-
-	/*
-	 * Count the total number of tries we will make, and zero the
-	 * counter for each server.
-	 */
-	total_tries = 0;
-	for (srv = 0;  srv < h->num_servers;  srv++) {
-		total_tries += h->servers[srv].max_tries;
-		h->servers[srv].num_tries = 0;
-	}
-	if (total_tries == 0) {
-		generr(h, "No RADIUS servers specified");
-		return -1;
-	}
-
-	srv = 0;
-	got_valid_response = 0;
-	for (try = 0;  try < total_tries;  try++) {
-		struct timeval timelimit;
-		struct timeval tv;
-
-		/*
-                 * Scan round-robin to the next server that has some
-                 * tries left.  There is guaranteed to be one, or we
-                 * would have exited this loop by now.
-		 */
-		while (h->servers[srv].num_tries >=
-		    h->servers[srv].max_tries)
-			if (++srv >= h->num_servers)
-				srv = 0;
-
-		/* Insert the scrambled password into the request */
-		insert_scrambled_password(h, srv);
-
-		/* Send the request */
-		n = sendto(h->fd, h->request, h->req_len, 0,
-		    (const struct sockaddr *)&h->servers[srv].addr,
-		    sizeof h->servers[srv].addr);
-		if (n != h->req_len) {
-			if (n == -1)
-				generr(h, "sendto: %s", strerror(errno));
-			else
-				generr(h, "sendto: short write");
-			return -1;
-		}
-		h->servers[srv].num_tries++;
-
-		/* Wait for a valid response */
-		gettimeofday(&timelimit, NULL);
-		timelimit.tv_sec += h->servers[srv].timeout;
-
-		tv.tv_sec = h->servers[srv].timeout;
-		tv.tv_usec = 0;
-		for ( ; ; ) {
-			fd_set readfds;
-
-			FD_ZERO(&readfds);
-			FD_SET(h->fd, &readfds);
-			n = select(h->fd + 1, &readfds, NULL, NULL, &tv);
-			if (n == -1) {
-				generr(h, "select: %s", strerror(errno));
-				return -1;
-			}
-			if (n == 0)	/* Timed out */
-				break;
-			if (FD_ISSET(h->fd, &readfds)) {
-				struct sockaddr_in from;
-				int fromlen;
-
-				fromlen = sizeof from;
-				h->resp_len = recvfrom(h->fd, h->response,
-				    MSGSIZE, MSG_WAITALL,
-				    (struct sockaddr *)&from, &fromlen);
-				if (h->resp_len == -1) {
-					generr(h, "recvfrom: %s",
-					    strerror(errno));
-					return -1;
-				}
-				if (is_valid_response(h, srv, &from)) {
-					got_valid_response = 1;
-					break;
-				}
-			}
-			/* Compute a new timeout */
-			gettimeofday(&tv, NULL);
-			timersub(&timelimit, &tv, &tv);
-			if (tv.tv_sec < 0)	/* Still poll once more */
-				timerclear(&tv);
-		}
-		if (got_valid_response)
-			break;
-		/* Advance to the next server */
-		if (++srv >= h->num_servers)
-			srv = 0;
-	}
-	if (!got_valid_response) {
-		generr(h, "No valid RADIUS responses received");
-		return -1;
-	}
-	h->resp_len = h->response[POS_LENGTH] << 8 | h->response[POS_LENGTH+1];
-	h->resp_pos = POS_ATTRS;
-	return h->response[POS_CODE];
-}
-
-const char *
-rad_strerror(struct rad_handle *h)
-{
-	return h->errmsg;
-}
-
-/*
- * Destructively split a string into fields separated by white space.
- * `#' at the beginning of a field begins a comment that extends to the
- * end of the string.  Fields may be quoted with `"'.  Inside quoted
- * strings, the backslash escapes `\"' and `\\' are honored.
- *
- * Pointers to up to the first maxfields fields are stored in the fields
- * array.  Missing fields get NULL pointers.
- *
- * The return value is the actual number of fields parsed, and is always
- * <= maxfields.
- *
- * On a syntax error, places a message in the msg string, and returns -1.
- */
-static int
-split(char *str, char *fields[], int maxfields, char *msg, size_t msglen)
-{
-	char *p;
-	int i;
-	static const char ws[] = " \t";
-
-	for (i = 0;  i < maxfields;  i++)
-		fields[i] = NULL;
-	p = str;
-	i = 0;
-	while (*p != '\0') {
-		p += strspn(p, ws);
-		if (*p == '#' || *p == '\0')
-			break;
-		if (i >= maxfields) {
-			snprintf(msg, msglen, "line has too many fields");
-			return -1;
-		}
-		if (*p == '"') {
-			char *dst;
-
-			dst = ++p;
-			fields[i] = dst;
-			while (*p != '"') {
-				if (*p == '\\') {
-					p++;
-					if (*p != '"' && *p != '\\' &&
-					    *p != '\0') {
-						snprintf(msg, msglen,
-						    "invalid `\\' escape");
-						return -1;
-					}
-				}
-				if (*p == '\0') {
-					snprintf(msg, msglen,
-					    "unterminated quoted string");
-					return -1;
-				}
-				*dst++ = *p++;
-			}
-			*dst = '\0';
-			p++;
-			if (*fields[i] == '\0') {
-				snprintf(msg, msglen,
-				    "empty quoted string not permitted");
-				return -1;
-			}
-			if (*p != '\0' && strspn(p, ws) == 0) {
-				snprintf(msg, msglen, "quoted string not"
-				    " followed by white space");
-				return -1;
-			}
-		} else {
-			fields[i] = p;
-			p += strcspn(p, ws);
-			if (*p != '\0')
-				*p++ = '\0';
-		}
-		i++;
-	}
-	return i;
-}