#include <ctype.h>
#include <sys/types.h>
#include <sys/wait.h>
+#ifdef HAVE_SYS_STAT_H
+#include <sys/stat.h>
+#endif
#if TIME_WITH_SYS_TIME
# include <sys/time.h>
#include <string.h>
#include <limits.h>
-#ifndef ENABLE_CHKPWD
+#include <libcitadel.h>
#include "auth.h"
-#endif
#include "citadel.h"
#include "server.h"
#include "database.h"
#include "user_ops.h"
-#include "serv_extensions.h"
#include "sysdep_decls.h"
#include "support.h"
#include "room_ops.h"
#include "control.h"
#include "msgbase.h"
#include "config.h"
-#include "tools.h"
#include "citserver.h"
#include "citadel_dirs.h"
#include "genstamp.h"
+/* These pipes are used to talk to the chkpwd daemon, which is forked during startup */
+int chkpwd_write_pipe[2];
+int chkpwd_read_pipe[2];
+
/*
* makeuserkey() - convert a username into the format used as a database key
- * (it's just the username converted into lower case)
+ * (it's just the username converted into lower case)
*/
static INLINE void makeuserkey(char *key, char *username) {
int i, len;
len = strlen(username);
+ if (len >= USERNAME_SIZE)
+ {
+ lprintf (CTDL_EMERG, "Username to long: %s", username);
+ cit_backtrace ();
+ len = USERNAME_SIZE - 1;
+ username[USERNAME_SIZE - 1]='\0';
+ }
for (i=0; i<=len; ++i) {
key[i] = tolower(username[i]);
}
/*
* getuser() - retrieve named user into supplied buffer.
- * returns 0 on success
+ * returns 0 on success
*/
int getuser(struct ctdluser *usbuf, char name[])
{
char IndexBuf[32];
int IndexLen = 0;
+ memset (IndexBuf, 0, sizeof (IndexBuf));
/* Generate an index */
IndexLen = GenerateRelationshipIndex(IndexBuf,
newvisit->v_roomnum,
/*
* getuserbynumber() - get user by number
- * returns 0 if user was found
+ * returns 0 if user was found
*
* WARNING: don't use this function unless you absolutely have to. It does
- * a sequential search and therefore is computationally expensive.
+ * a sequential search and therefore is computationally expensive.
*/
int getuserbynumber(struct ctdluser *usbuf, long int number)
{
/*
* getuserbyuid() - get user by system uid (for PAM mode authentication)
- * returns 0 if user was found
+ * returns 0 if user was found
*
* WARNING: don't use this function unless you absolutely have to. It does
- * a sequential search and therefore is computationally expensive.
+ * a sequential search and therefore is computationally expensive.
*/
int getuserbyuid(struct ctdluser *usbuf, uid_t number)
{
return (-1);
}
-
-
/*
* Back end for cmd_user() and its ilk
+ *
+ * NOTE: "authname" should only be used if we are attempting to use the "master user" feature
*/
-int CtdlLoginExistingUser(char *trythisname)
+int CtdlLoginExistingUser(char *authname, char *trythisname)
{
char username[SIZ];
int found_user;
}
if (trythisname == NULL) return login_not_found;
+
+ /* If a "master user" is defined, handle its authentication if specified */
+ CC->is_master = 0;
+ if (strlen(config.c_master_user) > 0) if (strlen(config.c_master_pass) > 0) if (authname) {
+ if (!strcasecmp(authname, config.c_master_user)) {
+ CC->is_master = 1;
+ }
+ }
+
+ /* Continue attempting user validation... */
safestrncpy(username, trythisname, USERNAME_SIZE);
striplt(username);
- if (strlen(username) == 0) {
+ if (IsEmptyStr(username)) {
return login_not_found;
}
char pwdbuffer[256];
lprintf(CTDL_DEBUG, "asking host about <%s>\n", username);
-#ifdef BSD_GETPWUID
+#ifdef SOLARIS_GETPWUID
tempPwdPtr = getpwnam_r(username, &pd, pwdbuffer, sizeof pwdbuffer);
#else
getpwnam_r(username, &pd, pwdbuffer, sizeof pwdbuffer, &tempPwdPtr);
* is an e-mail address
*/
if (found_user != 0) {
- valid = validate_recipients(username);
+ valid = validate_recipients(username, NULL, 0);
if (valid != NULL) {
if (valid->num_local == 1) {
found_user = getuser(&CC->user, valid->recp_local);
}
- free(valid);
+ free_recipients(valid);
}
}
}
extract_token(username, cmdbuf, 0, '|', sizeof username);
striplt(username);
- a = CtdlLoginExistingUser(username);
+ a = CtdlLoginExistingUser(NULL, username);
switch (a) {
case login_already_logged_in:
cprintf("%d Already logged in.\n", ERROR + ALREADY_LOGGED_IN);
*/
snprintf(CC->cs_inet_email, sizeof CC->cs_inet_email, "%s@%s",
CC->user.fullname, config.c_fqdn);
- for (i=0; i<strlen(CC->cs_inet_email); ++i) {
+ for (i=0; !IsEmptyStr(&CC->cs_inet_email[i]); ++i) {
if (isspace(CC->cs_inet_email[i])) {
CC->cs_inet_email[i] = '_';
}
/*
* If we were talking to a network node, we're not anymore...
*/
- if (strlen(who->net_node) > 0) {
+ if (!IsEmptyStr(who->net_node)) {
network_talking_to(who->net_node, NTT_REMOVE);
}
}
}
-#ifdef ENABLE_CHKPWD
/*
- * an alternate version of validpw() which executes `chkpwd' instead of
- * verifying the password directly
+ * Validate a password on the host unix system by talking to the chkpwd daemon
*/
static int validpw(uid_t uid, const char *pass)
{
- pid_t pid;
- int status, pipev[2];
- char buf[24];
-
- if (pipe(pipev)) {
- lprintf(CTDL_ERR, "pipe failed (%s): denying host auth access for "
- "uid %ld\n", strerror(errno), (long)uid);
- return 0;
- }
- switch (pid = fork()) {
- case -1:
- lprintf(CTDL_ERR, "fork failed (%s): denying host auth access for "
- "uid %ld\n", strerror(errno), (long)uid);
- close(pipev[0]);
- close(pipev[1]);
- return 0;
-
- case 0:
- close(pipev[1]);
- if (dup2(pipev[0], 0) == -1) {
- perror("dup2");
- exit(1);
- }
- close(pipev[0]);
+ char buf[256];
- execl(file_chkpwd, file_chkpwd, NULL);
- perror(file_chkpwd);
- exit(1);
- }
-
- close(pipev[0]);
- write(pipev[1], buf,
- snprintf(buf, sizeof buf, "%lu\n", (unsigned long) uid));
- write(pipev[1], pass, strlen(pass));
- write(pipev[1], "\n", 1);
- close(pipev[1]);
-
- while (waitpid(pid, &status, 0) == -1)
- if (errno != EINTR) {
- lprintf(CTDL_ERR, "waitpid failed (%s): denying host auth "
- "access for uid %ld\n",
- strerror(errno), (long)uid);
- return 0;
- }
- if (WIFEXITED(status) && !WEXITSTATUS(status))
- return 1;
+ lprintf(CTDL_DEBUG, "Validating password for uid=%d using chkpwd...\n", uid);
+
+ begin_critical_section(S_CHKPWD);
+ write(chkpwd_write_pipe[1], &uid, sizeof(uid_t));
+ write(chkpwd_write_pipe[1], pass, 256);
+ read(chkpwd_read_pipe[0], buf, 4);
+ end_critical_section(S_CHKPWD);
+ if (!strncmp(buf, "PASS", 4)) {
+ lprintf(CTDL_DEBUG, "...pass\n");
+ return(1);
+ }
+
+ lprintf(CTDL_DEBUG, "...fail\n");
return 0;
}
-#endif
+
+/*
+ * Start up the chkpwd daemon so validpw() has something to talk to
+ */
+void start_chkpwd_daemon(void) {
+ pid_t chkpwd_pid;
+ struct stat filestats;
+ int i;
+
+ lprintf(CTDL_DEBUG, "Starting chkpwd daemon for host authentication mode\n");
+
+ if ((stat(file_chkpwd, &filestats)==-1) ||
+ (filestats.st_size==0)){
+ printf("didn't find chkpwd daemon in %s: %s\n", file_chkpwd, strerror(errno));
+ abort();
+ }
+ if (pipe(chkpwd_write_pipe) != 0) {
+ lprintf(CTDL_EMERG, "Unable to create pipe for chkpwd daemon: %s\n", strerror(errno));
+ abort();
+ }
+ if (pipe(chkpwd_read_pipe) != 0) {
+ lprintf(CTDL_EMERG, "Unable to create pipe for chkpwd daemon: %s\n", strerror(errno));
+ abort();
+ }
+
+ chkpwd_pid = fork();
+ if (chkpwd_pid < 0) {
+ lprintf(CTDL_EMERG, "Unable to fork chkpwd daemon: %s\n", strerror(errno));
+ abort();
+ }
+ if (chkpwd_pid == 0) {
+ lprintf(CTDL_DEBUG, "Now calling dup2() write\n");
+ dup2(chkpwd_write_pipe[0], 0);
+ lprintf(CTDL_DEBUG, "Now calling dup2() write\n");
+ dup2(chkpwd_read_pipe[1], 1);
+ lprintf(CTDL_DEBUG, "Now closing stuff\n");
+ for (i=2; i<256; ++i) close(i);
+ lprintf(CTDL_DEBUG, "Now calling execl(%s)\n", file_chkpwd);
+ execl(file_chkpwd, file_chkpwd, NULL);
+ lprintf(CTDL_EMERG, "Unable to exec chkpwd daemon: %s\n", strerror(errno));
+ abort();
+ exit(errno);
+ }
+}
+
void do_login()
{
}
code = (-1);
- if (config.c_auth_mode == 1) {
+ if (CC->is_master) {
+ code = strcmp(password, config.c_master_pass);
+ }
+
+ else if (config.c_auth_mode == 1) {
/* host auth mode */
struct passwd *tempPwdPtr;
char pwdbuffer[256];
-#ifdef BSD_GETPWUID
+#ifdef SOLARIS_GETPWUID
tempPwdPtr = getpwnam_r(username, &pd, pwdbuffer, sizeof(pwdbuffer));
#else
getpwnam_r(username, &pd, pwdbuffer, sizeof pwdbuffer, &tempPwdPtr);
MailboxName(mailboxname, sizeof mailboxname, &usbuf, USERCONFIGROOM);
create_room(mailboxname, 5, "", 0, 1, 1, VIEW_BBS);
- if (lgetroom(&qrbuf, mailboxname) == 0) {
- qrbuf.QRflags2 |= QR2_SYSTEM;
- lputroom(&qrbuf);
- }
+ if (lgetroom(&qrbuf, mailboxname) == 0) {
+ qrbuf.QRflags2 |= QR2_SYSTEM;
+ lputroom(&qrbuf);
+ }
/* Perform any create functions registered by server extensions */
PerformUserHooks(&usbuf, EVT_NEWUSER);
username[25] = 0;
strproc(username);
- if (strlen(username) == 0) {
+ if (IsEmptyStr(username)) {
cprintf("%d You must supply a user name.\n", ERROR + USERNAME_REQUIRED);
return;
}
cprintf("%d Not allowed. Use the 'passwd' command.\n", ERROR + NOT_HERE);
return;
}
+ if (CC->is_master) {
+ cprintf("%d The master prefix password cannot be changed with this command.\n",
+ ERROR + NOT_HERE);
+ return;
+ }
strproc(new_pw);
- if (strlen(new_pw) == 0) {
+ if (IsEmptyStr(new_pw)) {
cprintf("%d Password unchanged.\n", CIT_OK);
return;
}
strproc(username);
strproc(password);
- if (strlen(username) == 0) {
+ if (IsEmptyStr(username)) {
cprintf("%d You must supply a user name.\n", ERROR + USERNAME_REQUIRED);
return;
}
a = create_user(username, 0);
if (a == 0) {
- if (strlen(password) > 0) {
+ if (!IsEmptyStr(password)) {
lgetuser(&tmp, username);
safestrncpy(tmp.password, password, sizeof(tmp.password));
lputuser(&tmp);
}
cprintf("%d User '%s' created %s.\n", CIT_OK, username,
- (strlen(password) > 0) ? "and password set" :
+ (!IsEmptyStr(password)) ? "and password set" :
"with no password");
return;
} else if (a == ERROR + ALREADY_EXISTS) {
- cprintf("%d '%s' already exists.\n",
- ERROR + ALREADY_EXISTS, username);
+ cprintf("%d '%s' already exists.\n", ERROR + ALREADY_EXISTS, username);
+ return;
+ } else if ( (config.c_auth_mode == 1) && (a == ERROR + NO_SUCH_USER) ) {
+ cprintf("%d User accounts are not created within Citadel in host authentication mode.\n",
+ ERROR + NO_SUCH_USER);
return;
} else {
- cprintf("%d An error occured creating the user account.\n", ERROR + INTERNAL_ERROR);
+ cprintf("%d An error occurred creating the user account.\n", ERROR + INTERNAL_ERROR);
}
}
/* access granted */
} else {
/* access denied */
- cprintf("%d Higher access or room ownership required.\n",
- ERROR + HIGHER_ACCESS_REQUIRED);
- return;
- }
+ cprintf("%d Higher access or room ownership required.\n",
+ ERROR + HIGHER_ACCESS_REQUIRED);
+ return;
+ }
if (!strncasecmp(CC->room.QRname, config.c_baseroom,
ROOMNAMELEN)) {
*/
int InitialMailCheck()
{
- int num_newmsgs = 0;
- int a;
- char mailboxname[ROOMNAMELEN];
- struct ctdlroom mailbox;
- struct visit vbuf;
- struct cdbdata *cdbfr;
- long *msglist = NULL;
- int num_msgs = 0;
-
- MailboxName(mailboxname, sizeof mailboxname, &CC->user, MAILROOM);
- if (getroom(&mailbox, mailboxname) != 0)
- return (0);
- CtdlGetRelationship(&vbuf, &CC->user, &mailbox);
-
- cdbfr = cdb_fetch(CDB_MSGLISTS, &mailbox.QRnumber, sizeof(long));
-
- if (cdbfr != NULL) {
- msglist = malloc(cdbfr->len);
- memcpy(msglist, cdbfr->ptr, cdbfr->len);
- num_msgs = cdbfr->len / sizeof(long);
- cdb_free(cdbfr);
- }
- if (num_msgs > 0)
- for (a = 0; a < num_msgs; ++a) {
- if (msglist[a] > 0L) {
- if (msglist[a] > vbuf.v_lastseen) {
- ++num_newmsgs;
- }
- }
- }
- if (msglist != NULL)
- free(msglist);
-
- return (num_newmsgs);
+ int num_newmsgs = 0;
+ int a;
+ char mailboxname[ROOMNAMELEN];
+ struct ctdlroom mailbox;
+ struct visit vbuf;
+ struct cdbdata *cdbfr;
+ long *msglist = NULL;
+ int num_msgs = 0;
+
+ MailboxName(mailboxname, sizeof mailboxname, &CC->user, MAILROOM);
+ if (getroom(&mailbox, mailboxname) != 0)
+ return (0);
+ CtdlGetRelationship(&vbuf, &CC->user, &mailbox);
+
+ cdbfr = cdb_fetch(CDB_MSGLISTS, &mailbox.QRnumber, sizeof(long));
+
+ if (cdbfr != NULL) {
+ msglist = malloc(cdbfr->len);
+ memcpy(msglist, cdbfr->ptr, cdbfr->len);
+ num_msgs = cdbfr->len / sizeof(long);
+ cdb_free(cdbfr);
+ }
+ if (num_msgs > 0)
+ for (a = 0; a < num_msgs; ++a) {
+ if (msglist[a] > 0L) {
+ if (msglist[a] > vbuf.v_lastseen) {
+ ++num_newmsgs;
+ }
+ }
+ }
+ if (msglist != NULL)
+ free(msglist);
+
+ return (num_newmsgs);
}
projects / citadel.git / blobdiff