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-rw-r--r--source/lib/access.c289
1 files changed, 0 insertions, 289 deletions
diff --git a/source/lib/access.c b/source/lib/access.c
deleted file mode 100644
index 599cb5ca7e3..00000000000
--- a/source/lib/access.c
+++ /dev/null
@@ -1,289 +0,0 @@
-/*
-This module is an adaption of code from the tcpd-1.4 package written
-by Wietse Venema, Eindhoven University of Technology, The Netherlands.
-
-The code is used here with permission.
-
-The code has been considerably changed from the original. Bug reports
-should be sent to samba-bugs@samba.anu.edu.au
-*/
-
-#include "includes.h"
-
-#define ALLOW_PURE_ADDRESSES
-
-extern int DEBUGLEVEL;
-
-#ifndef INADDR_NONE
-#define INADDR_NONE ((uint32)~0)
-#endif
-
-
-#define Good True
-#define Bad False
-
-#define CLIENT_MATCH client_match
-
-/* Delimiters for lists of daemons or clients. */
-
-static char sep[] = ", \t";
-
-/* Constants to be used in assignments only, not in comparisons... */
-
-#define YES 1
-#define NO 0
-#define FAIL (-1)
-
-/* Forward declarations. */
-static int list_match(char *list,char *item, int (*match_fn)());
-static int client_match(char *tok,char *item);
-static int string_match(char *tok,char *s);
-static int masked_match(char *tok, char *slash, char *s);
-
-/* Size of logical line buffer. */
-#define BUFLEN 2048
-
-/* return true if access should be allowed to a service*/
-BOOL check_access(int snum)
-{
- char *denyl,*allowl;
- BOOL ret = False;
-
- denyl = lp_hostsdeny(snum);
- if (denyl) denyl = strdup(denyl);
-
- allowl = lp_hostsallow(snum);
- if (allowl) allowl = strdup(allowl);
-
- if ((!denyl || *denyl==0) && (!allowl || *allowl==0))
- ret = True;
-
- if (!ret)
- {
- if (allow_access(denyl,allowl,client_name(),client_addr()))
- {
- if (snum >= 0)
- DEBUG(2,("Allowed connection from %s (%s) to %s\n",
- client_name(),client_addr(),
- lp_servicename(snum)));
- ret = True;
- }
- else
- if (snum >= 0)
- DEBUG(0,("Denied connection from %s (%s) to %s\n",
- client_name(),client_addr(),
- lp_servicename(snum)));
- }
-
- if (denyl) free(denyl);
- if (allowl) free(allowl);
- return(ret);
-}
-
-
-/* return true if access should be allowed */
-BOOL allow_access(char *deny_list,char *allow_list,char *cname,char *caddr)
-{
- char *client[2];
-
- client[0] = cname;
- client[1] = caddr;
-
- /* if theres no deny list and no allow list then allow access */
- if ((!deny_list || *deny_list == 0) && (!allow_list || *allow_list == 0))
- return(True);
-
- /* if there is an allow list but no deny list then allow only hosts
- on the allow list */
- if (!deny_list || *deny_list == 0)
- return(list_match(allow_list,(char *)client,CLIENT_MATCH));
-
- /* if theres a deny list but no allow list then allow
- all hosts not on the deny list */
- if (!allow_list || *allow_list == 0)
- return(!list_match(deny_list,(char *)client,CLIENT_MATCH));
-
- /* if there are both type of list then allow all hosts on the allow list */
- if (list_match(allow_list,(char *)client,CLIENT_MATCH))
- return (True);
-
- /* if there are both type of list and it's not on the allow then
- allow it if its not on the deny */
- if (list_match(deny_list,(char *)client,CLIENT_MATCH))
- return (False);
-
- return (True);
-}
-
-/* list_match - match an item against a list of tokens with exceptions */
-/* (All modifications are marked with the initials "jkf") */
-static int list_match(char *list,char *item, int (*match_fn)())
-{
- char *tok;
- char *listcopy; /* jkf */
- int match = NO;
-
- /*
- * jkf@soton.ac.uk -- 31 August 1994 -- Stop list_match()
- * overwriting the list given as its first parameter.
- */
-
- /* jkf -- can get called recursively with NULL list */
- listcopy = (list == 0) ? (char *)0 : strdup(list);
-
- /*
- * Process tokens one at a time. We have exhausted all possible matches
- * when we reach an "EXCEPT" token or the end of the list. If we do find
- * a match, look for an "EXCEPT" list and recurse to determine whether
- * the match is affected by any exceptions.
- */
-
- for (tok = strtok(listcopy, sep); tok ; tok = strtok(NULL, sep)) {
- if (strcasecmp(tok, "EXCEPT") == 0) /* EXCEPT: give up */
- break;
- if ((match = (*match_fn) (tok, item))) /* YES or FAIL */
- break;
- }
- /* Process exceptions to YES or FAIL matches. */
-
- if (match != NO) {
- while ((tok = strtok((char *) 0, sep)) && strcasecmp(tok, "EXCEPT"))
- /* VOID */ ;
- if (tok == 0 || list_match((char *) 0, item, match_fn) == NO) {
- if (listcopy != 0) free(listcopy); /* jkf */
- return (match);
- }
- }
-
- if (listcopy != 0) free(listcopy); /* jkf */
- return (NO);
-}
-
-
-/* client_match - match host name and address against token */
-static int client_match(char *tok,char *item)
-{
- char **client = (char **)item;
- int match;
-
- /*
- * Try to match the address first. If that fails, try to match the host
- * name if available.
- */
-
- if ((match = string_match(tok, client[1])) == 0)
- if (client[0][0] != 0)
- match = string_match(tok, client[0]);
- return (match);
-}
-
-/* string_match - match string against token */
-static int string_match(char *tok,char *s)
-{
- int tok_len;
- int str_len;
- char *cut;
-
- /*
- * Return YES if a token has the magic value "ALL". Return FAIL if the
- * token is "FAIL". If the token starts with a "." (domain name), return
- * YES if it matches the last fields of the string. If the token has the
- * magic value "LOCAL", return YES if the string does not contain a "."
- * character. If the token ends on a "." (network number), return YES if
- * it matches the first fields of the string. If the token begins with a
- * "@" (netgroup name), return YES if the string is a (host) member of
- * the netgroup. Return YES if the token fully matches the string. If the
- * token is a netnumber/netmask pair, return YES if the address is a
- * member of the specified subnet.
- */
-
- if (tok[0] == '.') { /* domain: match last fields */
- if ((str_len = strlen(s)) > (tok_len = strlen(tok))
- && strcasecmp(tok, s + str_len - tok_len) == 0)
- return (YES);
- } else if (tok[0] == '@') { /* netgroup: look it up */
-#ifdef NETGROUP
- static char *mydomain = NULL;
- char *hostname = NULL;
- BOOL netgroup_ok = False;
-
- if (!mydomain) yp_get_default_domain(&mydomain);
-
- if (!mydomain) {
- DEBUG(0,("Unable to get default yp domain.\n"));
- return NO;
- }
- if (!(hostname = strdup(s))) {
- DEBUG(1,("out of memory for strdup!\n"));
- return NO;
- }
-
- netgroup_ok = innetgr(tok + 1, hostname, (char *) 0, mydomain);
-
- DEBUG(5,("looking for %s of domain %s in netgroup %s gave %s\n",
- hostname,
- mydomain,
- tok+1,
- BOOLSTR(netgroup_ok)));
-
-#ifdef NETGROUP_INSECURE
- /* if you really want netgroups that match non qualified names
- then define NETGROUP_INSECURE. It can, however, be a big
- security hole */
- {
- char *clnt_domain;
- if (!netgroup_ok && (clnt_domain=strchr(hostname,'.'))) {
- *clnt_domain++ = '\0';
- netgroup_ok = innetgr(tok + 1, hostname, (char *) 0, mydomain);
- }
- }
-#endif
-
- free(hostname);
-
- if (netgroup_ok) return(YES);
-#else
- DEBUG(0,("access: netgroup support is not configured\n"));
- return (NO);
-#endif
- } else if (strcasecmp(tok, "ALL") == 0) { /* all: match any */
- return (YES);
- } else if (strcasecmp(tok, "FAIL") == 0) { /* fail: match any */
- return (FAIL);
- } else if (strcasecmp(tok, "LOCAL") == 0) { /* local: no dots */
- if (strchr(s, '.') == 0 && strcasecmp(s, "unknown") != 0)
- return (YES);
- } else if (!strcasecmp(tok, s)) { /* match host name or address */
- return (YES);
- } else if (tok[(tok_len = strlen(tok)) - 1] == '.') { /* network */
- if (strncmp(tok, s, tok_len) == 0)
- return (YES);
- } else if ((cut = strchr(tok, '/')) != 0) { /* netnumber/netmask */
- if (isdigit(s[0]) && masked_match(tok, cut, s))
- return (YES);
- }
- return (NO);
-}
-
-/* masked_match - match address against netnumber/netmask */
-static int masked_match(char *tok, char *slash, char *s)
-{
- uint32 net;
- uint32 mask;
- uint32 addr;
-
- if ((addr = interpret_addr(s)) == INADDR_NONE)
- return (NO);
- *slash = 0;
- net = interpret_addr(tok);
- *slash = '/';
- if (net == INADDR_NONE || (mask = interpret_addr(slash + 1)) == INADDR_NONE) {
- DEBUG(0,("access: bad net/mask access control: %s", tok));
- return (NO);
- }
- return ((addr & mask) == net);
-}
-
-
-
-
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