#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 usernamekey[USERNAME_SIZE];
- char sysuser_name[USERNAME_SIZE];
struct cdbdata *cdbus;
- int using_sysuser = 0;
if (usbuf != NULL) {
memset(usbuf, 0, sizeof(struct ctdluser));
}
-#ifdef ENABLE_AUTOLOGIN
- if (CtdlAssociateSystemUser(sysuser_name, name) == 0) {
- ++using_sysuser;
- }
-#endif
-
- if (using_sysuser) {
- makeuserkey(usernamekey, sysuser_name);
- }
- else {
- makeuserkey(usernamekey, name);
- }
-
+ makeuserkey(usernamekey, name);
cdbus = cdb_fetch(CDB_USERS, usernamekey, strlen(usernamekey));
+
if (cdbus == NULL) { /* user not found */
return(1);
}
void put_visit(struct visit *newvisit)
{
char IndexBuf[32];
- int IndexLen;
+ 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)
{
/*
- * See if we can translate a system login name (i.e. from /etc/passwd)
- * to a Citadel screen name. Returns 0 if one is found.
+ * getuserbyuid() - get user by system uid (for PAM mode authentication)
+ * 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.
*/
-int CtdlAssociateSystemUser(char *screenname, char *loginname) {
- struct passwd *p;
- int a;
+int getuserbyuid(struct ctdluser *usbuf, uid_t number)
+{
+ struct cdbdata *cdbus;
- p = (struct passwd *) getpwnam(loginname);
- if (p != NULL) {
- strcpy(screenname, p->pw_gecos);
- for (a = 0; a < strlen(screenname); ++a) {
- if (screenname[a] == ',') {
- screenname[a] = 0;
- }
+ cdb_rewind(CDB_USERS);
+
+ while (cdbus = cdb_next_item(CDB_USERS), cdbus != NULL) {
+ memset(usbuf, 0, sizeof(struct ctdluser));
+ memcpy(usbuf, cdbus->ptr,
+ ((cdbus->len > sizeof(struct ctdluser)) ?
+ sizeof(struct ctdluser) : cdbus->len));
+ cdb_free(cdbus);
+ if (usbuf->uid == number) {
+ cdb_close_cursor(CDB_USERS);
+ return (0);
}
- return(0);
}
- return(1);
+ 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;
- struct recptypes *valid = NULL;
+
+ if ((CC->logged_in)) {
+ return login_already_logged_in;
+ }
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 ((CC->logged_in)) {
- return login_already_logged_in;
+ if (IsEmptyStr(username)) {
+ return login_not_found;
}
- /* First, try to log in as if the supplied name is a display name */
- found_user = getuser(&CC->user, username);
+ if (config.c_auth_mode == 1) {
- /* If that didn't work, try to log in as if the supplied name
- * is an e-mail address
- */
- if (found_user != 0) {
- valid = validate_recipients(username);
- if (valid != NULL) {
- if (valid->num_local == 1) {
- found_user = getuser(&CC->user,
- valid->recp_local);
- }
- free(valid);
+ /* host auth mode */
+
+ struct passwd pd;
+ struct passwd *tempPwdPtr;
+ char pwdbuffer[256];
+
+ lprintf(CTDL_DEBUG, "asking host about <%s>\n", username);
+#ifdef SOLARIS_GETPWUID
+ tempPwdPtr = getpwnam_r(username, &pd, pwdbuffer, sizeof pwdbuffer);
+#else
+ getpwnam_r(username, &pd, pwdbuffer, sizeof pwdbuffer, &tempPwdPtr);
+#endif
+ if (tempPwdPtr == NULL) {
+ return login_not_found;
}
+ lprintf(CTDL_DEBUG, "found it! uid=%ld, gecos=%s\n", (long)pd.pw_uid, pd.pw_gecos);
+
+ /* Locate the associated Citadel account.
+ * If not found, make one attempt to create it.
+ */
+ found_user = getuserbyuid(&CC->user, pd.pw_uid);
+ if (found_user != 0) {
+ create_user(username, 0);
+ found_user = getuserbyuid(&CC->user, pd.pw_uid);
+ }
+
}
-#ifdef ENABLE_AUTOLOGIN
- /* If we haven't found the account yet, and the supplied name
- * is a login name on the underlying host system, create the
- * account.
- */
- if (found_user != 0) {
- struct passwd *p = (struct passwd *) getpwnam(username);
+ else {
+ /* native auth mode */
- if (p != NULL) {
- create_user(username, 0);
- found_user = getuser(&CC->user, username);
+ struct recptypes *valid = NULL;
+
+ /* First, try to log in as if the supplied name is a display name */
+ found_user = getuser(&CC->user, username);
+
+ /* If that didn't work, try to log in as if the supplied name
+ * is an e-mail address
+ */
+ if (found_user != 0) {
+ valid = validate_recipients(username, NULL, 0);
+ if (valid != NULL) {
+ if (valid->num_local == 1) {
+ found_user = getuser(&CC->user, valid->recp_local);
+ }
+ free_recipients(valid);
+ }
}
}
-#endif /* ENABLE_AUTOLOGIN */
/* Did we find something? */
if (found_user == 0) {
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);
*/
void session_startup(void)
{
- int i;
+ int i = 0;
lprintf(CTDL_NOTICE, "<%s> logged in\n", CC->curr_user);
if (!strcasecmp(CC->user.fullname, config.c_sysadm)) {
CC->user.axlevel = 6;
}
+
+ /* If we're authenticating off the host system, automatically give
+ * root the highest level of access.
+ */
+ if (config.c_auth_mode == 1) {
+ if (CC->user.uid == 0) {
+ CC->user.axlevel = 6;
+ }
+ }
+
lputuser(&CC->user);
/*
*/
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] = '_';
}
* make that assumption.
*/
strcpy(who->fake_username, "");
- strcpy(who->fake_postname, "");
strcpy(who->fake_hostname, "");
strcpy(who->fake_roomname, "");
who->logged_in = 0;
/*
* 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 autologin access for "
- "uid %ld\n", strerror(errno), (long)uid);
- return 0;
- }
- switch (pid = fork()) {
- case -1:
- lprintf(CTDL_ERR, "fork failed (%s): denying autologin 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]);
-
- execl(CTDLDIR "/chkpwd", CTDLDIR "/chkpwd", NULL);
- perror(CTDLDIR "/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 autologin "
- "access for uid %ld\n",
- strerror(errno), (long)uid);
- return 0;
- }
- if (WIFEXITED(status) && !WEXITSTATUS(status))
- return 1;
+ char buf[256];
+
+ 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);
-
-#ifdef ENABLE_AUTOLOGIN
- /* A uid of CTDLUID or -1 indicates that this user exists only in
- * Citadel, not in the underlying operating system.
- */
- if ( (CC->user.uid == CTDLUID) || (CC->user.uid == (-1)) ) {
- strproc(password);
- strproc(CC->user.password);
- code = strcasecmp(CC->user.password, password);
+ if (CC->is_master) {
+ code = strcmp(password, config.c_master_pass);
}
- /* Any other uid means we have to check the system password database */
- else {
+
+ else if (config.c_auth_mode == 1) {
+
+ /* host auth mode */
+
if (validpw(CC->user.uid, password)) {
code = 0;
+
+ /*
+ * sooper-seekrit hack: populate the password field in the
+ * citadel database with the password that the user typed,
+ * if it's correct. This allows most sites to convert from
+ * host auth to native auth if they want to. If you think
+ * this is a security hazard, comment it out.
+ */
+
lgetuser(&CC->user, CC->curr_user);
- safestrncpy(CC->user.password, password,
- sizeof CC->user.password);
+ safestrncpy(CC->user.password, password, sizeof CC->user.password);
lputuser(&CC->user);
+
+ /*
+ * (sooper-seekrit hack ends here)
+ */
+
+ }
+ else {
+ code = (-1);
}
}
-#else /* ENABLE_AUTOLOGIN */
- strproc(password);
- strproc(CC->user.password);
- code = strcasecmp(CC->user.password, password);
+ else {
+
+ /* native auth mode */
-#endif /* ENABLE_AUTOLOGIN */
+ strproc(password);
+ strproc(CC->user.password);
+ code = strcasecmp(CC->user.password, password);
+ strproc(password);
+ strproc(CC->user.password);
+ code = strcasecmp(CC->user.password, password);
+ }
if (!code) {
do_login();
struct ctdlroom qrbuf;
char username[256];
char mailboxname[ROOMNAMELEN];
- uid_t uid;
+ char buf[SIZ];
+ uid_t uid = (-1);
safestrncpy(username, newusername, sizeof username);
strproc(username);
-#ifdef ENABLE_AUTOLOGIN
- {
- struct passwd *p = (struct passwd *) getpwnam(username);
+ if (config.c_auth_mode == 1) {
- if (p != NULL) {
- extract_token(username, p->pw_gecos, 0, ',', sizeof username);
- uid = p->pw_uid;
- } else {
- uid = (-1);
- }
- }
+ /* host auth mode */
+
+ struct passwd pd;
+ struct passwd *tempPwdPtr;
+ char pwdbuffer[256];
+
+#ifdef SOLARIS_GETPWUID
+ tempPwdPtr = getpwnam_r(username, &pd, pwdbuffer, sizeof(pwdbuffer));
#else
- uid = (-1);
+ getpwnam_r(username, &pd, pwdbuffer, sizeof pwdbuffer, &tempPwdPtr);
#endif
+ if (tempPwdPtr != NULL) {
+ extract_token(username, pd.pw_gecos, 0, ',', sizeof username);
+ uid = pd.pw_uid;
+ }
+ else {
+ return (ERROR + NO_SUCH_USER);
+ }
+ }
if (!getuser(&usbuf, username)) {
return (ERROR + ALREADY_EXISTS);
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);
return (ERROR + INTERNAL_ERROR);
}
}
-
+
+ snprintf(buf, SIZ,
+ "New user account <%s> has been created, from host %s [%s].\n",
+ username,
+ CC->cs_host,
+ CC->cs_addr
+ );
+ aide_message(buf, "User Creation Notice");
lprintf(CTDL_NOTICE, "New user <%s> created\n", username);
return (0);
}
int a;
char username[26];
+ if (config.c_auth_mode == 1) {
+ cprintf("%d This system does not use native mode authentication.\n",
+ ERROR + NOT_HERE);
+ return;
+ }
+
if (config.c_disable_newu) {
cprintf("%d Self-service user account creation "
"is disabled on this system.\n", ERROR + NOT_HERE);
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);
}
}
((op == 1) ? "invited to" : "kicked out of"),
CC->room.QRname,
CC->user.fullname);
- aide_message(bbb);
+ aide_message(bbb,"User Admin Message");
return(0);
}
/* 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)) {
if (deleted) {
sprintf(notify, "User \"%s\" has been deleted by %s.\n",
usbuf.fullname, CC->user.fullname);
- aide_message(notify);
+ aide_message(notify, "User Deletion Message");
}
cprintf("%d Ok", CIT_OK);
*/
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