release/4.2.0_cvs

1 files changed, 0 insertions, 763 deletions

diff --git a/crypto/heimdal/kdc/connect.c b/crypto/heimdal/kdc/connect.c
deleted file mode 100644
index 0ce23b5481cbd..0000000000000
--- a/crypto/heimdal/kdc/connect.c
+++ /dev/null
@@ -1,763 +0,0 @@
-/*
- * Copyright (c) 1997-2000 Kungliga Tekniska Högskolan
- * (Royal Institute of Technology, Stockholm, Sweden). 
- * 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. 
- *
- * 3. Neither the name of the Institute nor the names of its contributors 
- *    may be used to endorse or promote products derived from this software 
- *    without specific prior written permission. 
- *
- * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE 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 INSTITUTE 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. 
- */
-
-#include "kdc_locl.h"
-
-RCSID("$Id: connect.c,v 1.70 2000/02/19 18:41:24 assar Exp $");
-
-/*
- * a tuple describing on what to listen
- */
-
-struct port_desc{
-    int family;
-    int type;
-    int port;
-};
-
-/* the current ones */
-
-static struct port_desc *ports;
-static int num_ports;
-
-/*
- * add `family, port, protocol' to the list with duplicate suppresion.
- */
-
-static void
-add_port(int family, int port, const char *protocol)
-{
-    int type;
-    int i;
-
-    if(strcmp(protocol, "udp") == 0)
-	type = SOCK_DGRAM;
-    else if(strcmp(protocol, "tcp") == 0)
-	type = SOCK_STREAM;
-    else
-	return;
-    for(i = 0; i < num_ports; i++){
-	if(ports[i].type == type
-	   && ports[i].port == port
-	   && ports[i].family == family)
-	    return;
-    }
-    ports = realloc(ports, (num_ports + 1) * sizeof(*ports));
-    if (ports == NULL)
-	krb5_err (context, 1, errno, "realloc");
-    ports[num_ports].family = family;
-    ports[num_ports].type   = type;
-    ports[num_ports].port   = port;
-    num_ports++;
-}
-
-/*
- * add a triple but with service -> port lookup
- * (this prints warnings for stuff that does not exist)
- */
-
-static void
-add_port_service(int family, const char *service, int port,
-		 const char *protocol)
-{
-    port = krb5_getportbyname (context, service, protocol, port);
-    add_port (family, port, protocol);
-}
-
-/*
- * add the port with service -> port lookup or string -> number
- * (no warning is printed)
- */
-
-static void
-add_port_string (int family, const char *port_str, const char *protocol)
-{
-    struct servent *sp;
-    int port;
-
-    sp = roken_getservbyname (port_str, protocol);
-    if (sp != NULL) {
-	port = sp->s_port;
-    } else {
-	char *end;
-
-	port = htons(strtol(port_str, &end, 0));
-	if (end == port_str)
-	    return;
-    }
-    add_port (family, port, protocol);
-}
-
-/*
- * add the standard collection of ports for `family'
- */
-
-static void
-add_standard_ports (int family)
-{
-    add_port_service(family, "kerberos", 88, "udp");
-    add_port_service(family, "kerberos", 88, "tcp");
-    add_port_service(family, "kerberos-sec", 88, "udp");
-    add_port_service(family, "kerberos-sec", 88, "tcp");
-    add_port_service(family, "kerberos-iv", 750, "udp");
-    add_port_service(family, "kerberos-iv", 750, "tcp");
-    if(enable_http)
-	add_port_service(family, "http", 80, "tcp");
-#ifdef KASERVER
-    if (enable_kaserver)
-	add_port_service(family, "afs3-kaserver", 7004, "udp");
-#endif
-}
-
-/*
- * parse the set of space-delimited ports in `str' and add them.
- * "+" => all the standard ones
- * otherwise it's port|service[/protocol]
- */
-
-static void
-parse_ports(const char *str)
-{
-    char *pos = NULL;
-    char *p;
-    char *str_copy = strdup (str);
-
-    p = strtok_r(str_copy, " \t", &pos);
-    while(p != NULL) {
-	if(strcmp(p, "+") == 0) {
-#ifdef HAVE_IPV6
-	    add_standard_ports(AF_INET6);
-#endif
-	    add_standard_ports(AF_INET);
-	} else {
-	    char *q = strchr(p, '/');
-	    if(q){
-		*q++ = 0;
-#ifdef HAVE_IPV6
-		add_port_string(AF_INET6, p, q);
-#endif
-		add_port_string(AF_INET, p, q);
-	    }else {
-#ifdef HAVE_IPV6
-		add_port_string(AF_INET6, p, "udp");
-		add_port_string(AF_INET6, p, "tcp");
-#endif
-		add_port_string(AF_INET, p, "udp");
-		add_port_string(AF_INET, p, "tcp");
-	    }
-	}
-	    
-	p = strtok_r(NULL, " \t", &pos);
-    }
-    free (str_copy);
-}
-
-/*
- * every socket we listen on
- */
-
-struct descr {
-    int s;
-    int type;
-    unsigned char *buf;
-    size_t size;
-    size_t len;
-    time_t timeout;
-    struct sockaddr_storage __ss;
-    struct sockaddr *sa;
-    int sock_len;
-    char addr_string[128];
-};
-
-/*
- * Create the socket (family, type, port) in `d'
- */
-
-static void 
-init_socket(struct descr *d, krb5_address *a, int family, int type, int port)
-{
-    krb5_error_code ret;
-    struct sockaddr_storage __ss;
-    struct sockaddr *sa = (struct sockaddr *)&__ss;
-    int sa_size;
-
-    memset(d, 0, sizeof(*d));
-    d->sa = (struct sockaddr *)&d->__ss;
-    d->s = -1;
-
-    ret = krb5_addr2sockaddr (a, sa, &sa_size, port);
-    if (ret) {
-	krb5_warn(context, ret, "krb5_addr2sockaddr");
-	close(d->s);
-	d->s = -1;
-	return;
-    }
-
-    if (sa->sa_family != family)
-	return;
-
-    d->s = socket(family, type, 0);
-    if(d->s < 0){
-	krb5_warn(context, errno, "socket(%d, %d, 0)", family, type);
-	d->s = -1;
-	return;
-    }
-#if defined(HAVE_SETSOCKOPT) && defined(SOL_SOCKET) && defined(SO_REUSEADDR)
-    {
-	int one = 1;
-	setsockopt(d->s, SOL_SOCKET, SO_REUSEADDR, (void *)&one, sizeof(one));
-    }
-#endif
-    d->type = type;
-
-    if(bind(d->s, sa, sa_size) < 0){
-	char a_str[256];
-	size_t len;
-
-	krb5_print_address (a, a_str, sizeof(a_str), &len);
-	krb5_warn(context, errno, "bind %s/%d", a_str, ntohs(port));
-	close(d->s);
-	d->s = -1;
-	return;
-    }
-    if(type == SOCK_STREAM && listen(d->s, SOMAXCONN) < 0){
-	char a_str[256];
-	size_t len;
-
-	krb5_print_address (a, a_str, sizeof(a_str), &len);
-	krb5_warn(context, errno, "listen %s/%d", a_str, ntohs(port));
-	close(d->s);
-	d->s = -1;
-	return;
-    }
-}
-
-/*
- * Allocate descriptors for all the sockets that we should listen on
- * and return the number of them.
- */
-
-static int
-init_sockets(struct descr **desc)
-{
-    krb5_error_code ret;
-    int i, j;
-    struct descr *d;
-    int num = 0;
-    krb5_addresses addresses;
-
-    if (explicit_addresses.len) {
-	addresses = explicit_addresses;
-    } else {
-	ret = krb5_get_all_server_addrs (context, &addresses);
-	if (ret)
-	    krb5_err (context, 1, ret, "krb5_get_all_server_addrs");
-    }
-    parse_ports(port_str);
-    d = malloc(addresses.len * num_ports * sizeof(*d));
-    if (d == NULL)
-	krb5_errx(context, 1, "malloc(%u) failed", num_ports * sizeof(*d));
-
-    for (i = 0; i < num_ports; i++){
-	for (j = 0; j < addresses.len; ++j) {
-	    init_socket(&d[num], &addresses.val[j],
-			ports[i].family, ports[i].type, ports[i].port);
-	    if(d[num].s != -1){
-		char a_str[80];
-		size_t len;
-
-		krb5_print_address (&addresses.val[j], a_str,
-				    sizeof(a_str), &len);
-
-		kdc_log(5, "listening on %s port %u/%s",
-			a_str,
-			ntohs(ports[i].port), 
-			(ports[i].type == SOCK_STREAM) ? "tcp" : "udp");
-		/* XXX */
-		num++;
-	    }
-	}
-    }
-    krb5_free_addresses (context, &addresses);
-    d = realloc(d, num * sizeof(*d));
-    if (d == NULL && num != 0)
-	krb5_errx(context, 1, "realloc(%u) failed", num * sizeof(*d));
-    *desc = d;
-    return num;
-}
-
-/*
- * handle the request in `buf, len', from `addr' (or `from' as a string),
- * sending a reply in `reply'.
- */
-
-static int
-process_request(unsigned char *buf, 
-		size_t len, 
-		krb5_data *reply,
-		int *sendlength,
-		const char *from,
-		struct sockaddr *addr)
-{
-    KDC_REQ req;
-#ifdef KRB4
-    Ticket ticket;
-#endif
-    krb5_error_code ret;
-    size_t i;
-
-    gettimeofday(&now, NULL);
-    if(decode_AS_REQ(buf, len, &req, &i) == 0){
-	ret = as_rep(&req, reply, from, addr);
-	free_AS_REQ(&req);
-	return ret;
-    }else if(decode_TGS_REQ(buf, len, &req, &i) == 0){
-	ret = tgs_rep(&req, reply, from, addr);
-	free_TGS_REQ(&req);
-	return ret;
-    }
-#ifdef KRB4
-    else if(maybe_version4(buf, len)){
-	*sendlength = 0; /* elbitapmoc sdrawkcab XXX */
-	do_version4(buf, len, reply, from, (struct sockaddr_in*)addr);
-	return 0;
-    }else if(decode_Ticket(buf, len, &ticket, &i) == 0){
-	ret = do_524(&ticket, reply, from, addr);
-	free_Ticket(&ticket);
-	return ret;
-    }
-#endif
-#ifdef KASERVER
-    else if (enable_kaserver) {
-	ret = do_kaserver (buf, len, reply, from, (struct sockaddr_in*)addr);
-	return ret;
-    }
-#endif
-			  
-    return -1;
-}
-
-static void
-addr_to_string(struct sockaddr *addr, size_t addr_len, char *str, size_t len)
-{
-    krb5_address a;
-    krb5_sockaddr2address(addr, &a);
-    if(krb5_print_address(&a, str, len, &len) == 0) {
-	krb5_free_address(context, &a);
-	return;
-    }
-    krb5_free_address(context, &a);
-    snprintf(str, len, "<family=%d>", addr->sa_family);
-}
-
-/*
- * Handle the request in `buf, len' to socket `d'
- */
-
-static void
-do_request(void *buf, size_t len, int sendlength,
-	   struct descr *d)
-{
-    krb5_error_code ret;
-    krb5_data reply;
-    
-    reply.length = 0;
-    ret = process_request(buf, len, &reply, &sendlength,
-			  d->addr_string, d->sa);
-    if(reply.length){
-	kdc_log(5, "sending %d bytes to %s", reply.length, d->addr_string);
-	if(sendlength){
-	    unsigned char len[4];
-	    len[0] = (reply.length >> 24) & 0xff;
-	    len[1] = (reply.length >> 16) & 0xff;
-	    len[2] = (reply.length >> 8) & 0xff;
-	    len[3] = reply.length & 0xff;
-	    if(sendto(d->s, len, sizeof(len), 0, d->sa, d->sock_len) < 0) {
-		kdc_log (0, "sendto(%s): %s", d->addr_string, strerror(errno));
-		krb5_data_free(&reply);
-		return;
-	    }
-	}
-	if(sendto(d->s, reply.data, reply.length, 0, d->sa, d->sock_len) < 0) {
-	    kdc_log (0, "sendto(%s): %s", d->addr_string, strerror(errno));
-	    krb5_data_free(&reply);
-	    return;
-	}
-	krb5_data_free(&reply);
-    }
-    if(ret)
-	kdc_log(0, "Failed processing %lu byte request from %s", 
-		(unsigned long)len, d->addr_string);
-}
-
-/*
- * Handle incoming data to the UDP socket in `d'
- */
-
-static void
-handle_udp(struct descr *d)
-{
-    unsigned char *buf;
-    int n;
-
-    buf = malloc(max_request);
-    if(buf == NULL){
-	kdc_log(0, "Failed to allocate %u bytes", max_request);
-	return;
-    }
-
-    d->sock_len = sizeof(d->__ss);
-    n = recvfrom(d->s, buf, max_request, 0, d->sa, &d->sock_len);
-    if(n < 0)
-	krb5_warn(context, errno, "recvfrom");
-    else {
-	addr_to_string (d->sa, d->sock_len,
-			d->addr_string, sizeof(d->addr_string));
-	do_request(buf, n, 0, d);
-    }
-    free (buf);
-}
-
-static void
-clear_descr(struct descr *d)
-{
-    if(d->buf)
-	memset(d->buf, 0, d->size);
-    d->len = 0;
-    if(d->s != -1)
-	close(d->s);
-    d->s = -1;
-}
-
-
-/* remove HTTP %-quoting from buf */
-static int
-de_http(char *buf)
-{
-    char *p, *q;
-    for(p = q = buf; *p; p++, q++) {
-	if(*p == '%') {
-	    unsigned int x;
-	    if(sscanf(p + 1, "%2x", &x) != 1)
-		return -1;
-	    *q = x;
-	    p += 2;
-	} else
-	    *q = *p;
-    }
-    *q = '\0';
-    return 0;
-}
-
-#define TCP_TIMEOUT 4
-
-/*
- * accept a new TCP connection on `d[index]'
- */
-
-static void
-add_new_tcp (struct descr *d, int index, int min_free)
-{
-    int s;
-
-    d->sock_len = sizeof(d->__ss);
-    s = accept(d[index].s, d->sa, &d->sock_len);
-    if(s < 0) {
-	krb5_warn(context, errno, "accept");
-	return;
-    }
-    if(min_free == -1){
-	close(s);
-	return;
-    }
-	    
-    d[min_free].s = s;
-    d[min_free].timeout = time(NULL) + TCP_TIMEOUT;
-    d[min_free].type = SOCK_STREAM;
-    addr_to_string (d[min_free].sa, d[min_free].sock_len,
-		    d[min_free].addr_string, sizeof(d[min_free].addr_string));
-}
-
-/*
- * Grow `d' to handle at least `n'.
- * Return != 0 if fails
- */
-
-static int
-grow_descr (struct descr *d, size_t n)
-{
-    if (d->size - d->len < n) {
-	unsigned char *tmp;
-
-	d->size += max(1024, d->len + n);
-	if (d->size >= max_request) {
-	    kdc_log(0, "Request exceeds max request size (%u bytes).",
-		    d->size);
-	    clear_descr(d);
-	    return -1;
-	}
-	tmp = realloc (d->buf, d->size);
-	if (tmp == NULL) {
-	    kdc_log(0, "Failed to re-allocate %u bytes.", d->size);
-	    clear_descr(d);
-	    return -1;
-	}
-	d->buf = tmp;
-    }
-    return 0;
-}
-
-/*
- * Try to handle the TCP data at `d->buf, d->len'.
- * Return -1 if failed, 0 if succesful, and 1 if data is complete.
- */
-
-static int
-handle_vanilla_tcp (struct descr *d)
-{
-    krb5_storage *sp;
-    int32_t len;
-
-    sp = krb5_storage_from_mem(d->buf, d->len);
-    if (sp == NULL) {
-	kdc_log (0, "krb5_storage_from_mem failed");
-	return -1;
-    }
-    krb5_ret_int32(sp, &len);
-    krb5_storage_free(sp);
-    if(d->len - 4 >= len) {
-	memcpy(d->buf, d->buf + 4, d->len - 4);
-	return 1;
-    }
-    return 0;
-}
-
-/*
- * Try to handle the TCP/HTTP data at `d->buf, d->len'.
- * Return -1 if failed, 0 if succesful, and 1 if data is complete.
- */
-
-static int
-handle_http_tcp (struct descr *d)
-{
-    char *s, *p, *t;
-    void *data;
-    char *proto;
-    int len;
-
-    s = (char *)d->buf;
-
-    p = strstr(s, "\r\n");
-    if (p == NULL) {
-	kdc_log(0, "Malformed HTTP request from %s", d->addr_string);
-	return -1;
-    }
-    *p = 0;
-
-    p = NULL;
-    t = strtok_r(s, " \t", &p);
-    if (t == NULL) {
-	kdc_log(0, "Malformed HTTP request from %s", d->addr_string);
-	return -1;
-    }
-    t = strtok_r(NULL, " \t", &p);
-    if(t == NULL) {
-	kdc_log(0, "Malformed HTTP request from %s", d->addr_string);
-	return -1;
-    }
-    data = malloc(strlen(t));
-    if (data == NULL) {
-	kdc_log(0, "Failed to allocate %u bytes", strlen(t));
-	return -1;
-    }
-    if(*t == '/')
-	t++;
-    if(de_http(t) != 0) {
-	kdc_log(0, "Malformed HTTP request from %s", d->addr_string);
-	kdc_log(5, "Request: %s", t);
-	free(data);
-	return -1;
-    }
-    proto = strtok_r(NULL, " \t", &p);
-    if (proto == NULL) {
-	kdc_log(0, "Malformed HTTP request from %s", d->addr_string);
-	free(data);
-	return -1;
-    }
-    len = base64_decode(t, data);
-    if(len <= 0){
-	const char *msg = 
-	    " 404 Not found\r\n"
-	    "Server: Heimdal/" VERSION "\r\n"
-	    "Content-type: text/html\r\n"
-	    "Content-transfer-encoding: 8bit\r\n\r\n"
-	    "<TITLE>404 Not found</TITLE>\r\n"
-	    "<H1>404 Not found</H1>\r\n"
-	    "That page doesn't exist, maybe you are looking for "
-	    "<A HREF=\"http://www.pdc.kth.se/heimdal\">Heimdal</A>?\r\n";
-	write(d->s, proto, strlen(proto));
-	write(d->s, msg, strlen(msg));
-	kdc_log(0, "HTTP request from %s is non KDC request", d->addr_string);
-	kdc_log(5, "Request: %s", t);
-	free(data);
-	return -1;
-    }
-    {
-	const char *msg = 
-	    " 200 OK\r\n"
-	    "Server: Heimdal/" VERSION "\r\n"
-	    "Content-type: application/octet-stream\r\n"
-	    "Content-transfer-encoding: binary\r\n\r\n";
-	write(d->s, proto, strlen(proto));
-	write(d->s, msg, strlen(msg));
-    }
-    memcpy(d->buf, data, len);
-    d->len = len;
-    free(data);
-    return 1;
-}
-
-/*
- * Handle incoming data to the TCP socket in `d[index]'
- */
-
-static void
-handle_tcp(struct descr *d, int index, int min_free)
-{
-    unsigned char buf[1024];
-    int n;
-    int ret = 0;
-
-    if (d[index].timeout == 0) {
-	add_new_tcp (d, index, min_free);
-	return;
-    }
-
-    n = recvfrom(d[index].s, buf, sizeof(buf), 0, NULL, NULL);
-    if(n < 0){
-	krb5_warn(context, errno, "recvfrom");
-	return;
-    }
-    if (grow_descr (&d[index], n))
-	return;
-    memcpy(d[index].buf + d[index].len, buf, n);
-    d[index].len += n;
-    if(d[index].len > 4 && d[index].buf[0] == 0) {
-	ret = handle_vanilla_tcp (&d[index]);
-    } else if(enable_http &&
-	      d[index].len >= 4 &&
-	      strncmp((char *)d[index].buf, "GET ", 4) == 0 && 
-	      strncmp((char *)d[index].buf + d[index].len - 4,
-		      "\r\n\r\n", 4) == 0) {
-	ret = handle_http_tcp (&d[index]);
-	if (ret < 0)
-	    clear_descr (d + index);
-    } else if (d[index].len > 4) {
-	kdc_log (0, "TCP data of strange type from %s", d[index].addr_string);
-	return;
-    }
-    if (ret < 0)
-	return;
-    else if (ret == 1) {
-	do_request(d[index].buf, d[index].len, 1, &d[index]);
-	clear_descr(d + index);
-    }
-}
-
-void
-loop(void)
-{
-    struct descr *d;
-    int ndescr;
-
-    ndescr = init_sockets(&d);
-    if(ndescr <= 0)
-	krb5_errx(context, 1, "No sockets!");
-    while(exit_flag == 0){
-	struct timeval tmout;
-	fd_set fds;
-	int min_free = -1;
-	int max_fd = 0;
-	int i;
-	FD_ZERO(&fds);
-	for(i = 0; i < ndescr; i++){
-	    if(d[i].s >= 0){
-		if(d[i].type == SOCK_STREAM && 
-		   d[i].timeout && d[i].timeout < time(NULL)) {
-		    kdc_log(1, "TCP-connection from %s expired after %u bytes",
-			    d[i].addr_string, d[i].len);
-		    clear_descr(&d[i]);
-		    continue;
-		}
-		if(max_fd < d[i].s)
-		    max_fd = d[i].s;
-		FD_SET(d[i].s, &fds);
-	    }else if(min_free < 0 || i < min_free)
-		min_free = i;
-	}
-	if(min_free == -1){
-	    struct descr *tmp;
-	    tmp = realloc(d, (ndescr + 4) * sizeof(*d));
-	    if(tmp == NULL)
-		krb5_warnx(context, "No memory");
-	    else{
-		d = tmp;
-		memset(d + ndescr, 0, 4 * sizeof(*d));
-		for(i = ndescr; i < ndescr + 4; i++)
-		    d[i].s = -1;
-		min_free = ndescr;
-		ndescr += 4;
-	    }
-	}
-    
-	tmout.tv_sec = TCP_TIMEOUT;
-	tmout.tv_usec = 0;
-	switch(select(max_fd + 1, &fds, 0, 0, &tmout)){
-	case 0:
-	    break;
-	case -1:
-	    if (errno != EINTR)
-		krb5_warn(context, errno, "select");
-	    break;
-	default:
-	    for(i = 0; i < ndescr; i++)
-		if(d[i].s >= 0 && FD_ISSET(d[i].s, &fds)) {
-		    if(d[i].type == SOCK_DGRAM)
-			handle_udp(&d[i]);
-		    else if(d[i].type == SOCK_STREAM)
-			handle_tcp(d, i, min_free);
-		}
-	}
-    }
-    free (d);
-}