New "login" source file
Rename Hello_User[_PostAuth] to Login_User[_PostAuth] and move it to the new login.c; and move cb_Read_Auth_Result(), too. This will enable further code to easily call Login_User() when required.
This commit is contained in:
Alexander Barton
parent
ee362b3bd2
commit
edfcc2f9d5
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@ -41,6 +41,7 @@
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FAA3D27B0F139CDC00B2447E /* conn-ssl.c in Sources */ = {isa = PBXBuildFile; fileRef = FAA3D2790F139CDC00B2447E /* conn-ssl.c */; };
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FAA97C57124A271400D5BBA9 /* sighandlers.c in Sources */ = {isa = PBXBuildFile; fileRef = FAA97C55124A271400D5BBA9 /* sighandlers.c */; };
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FAACD5F514A6099C006ED74F /* class.c in Sources */ = {isa = PBXBuildFile; fileRef = FAACD5F314A6099C006ED74F /* class.c */; };
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FAD5853815272C2600328741 /* login.c in Sources */ = {isa = PBXBuildFile; fileRef = FAD5853615272C2500328741 /* login.c */; };
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FAE5CC2E0CF2308A007D69B6 /* numeric.c in Sources */ = {isa = PBXBuildFile; fileRef = FAE5CC2D0CF2308A007D69B6 /* numeric.c */; };
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/* End PBXBuildFile section */
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@ -231,6 +232,8 @@
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FAA97C56124A271400D5BBA9 /* sighandlers.h */ = {isa = PBXFileReference; fileEncoding = 5; lastKnownFileType = sourcecode.c.h; path = sighandlers.h; sourceTree = "<group>"; };
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FAACD5F314A6099C006ED74F /* class.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; path = class.c; sourceTree = "<group>"; };
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FAACD5F414A6099C006ED74F /* class.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = class.h; sourceTree = "<group>"; };
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FAD5853615272C2500328741 /* login.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; path = login.c; sourceTree = "<group>"; };
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FAD5853715272C2500328741 /* login.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = login.h; sourceTree = "<group>"; };
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FAE22BD215270EA300F1A5AB /* Bopm.txt */ = {isa = PBXFileReference; lastKnownFileType = text; path = Bopm.txt; sourceTree = "<group>"; };
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FAE22BD415270EA300F1A5AB /* Contributing.txt */ = {isa = PBXFileReference; lastKnownFileType = text; path = Contributing.txt; sourceTree = "<group>"; };
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FAE22BD515270EB500F1A5AB /* HowToRelease.txt */ = {isa = PBXFileReference; lastKnownFileType = text; path = HowToRelease.txt; sourceTree = "<group>"; };
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@ -351,6 +354,8 @@
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FA322CFF0CEF74B1001761B3 /* lists.h */,
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FA322D000CEF74B1001761B3 /* log.c */,
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FA322D010CEF74B1001761B3 /* log.h */,
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FAD5853615272C2500328741 /* login.c */,
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FAD5853715272C2500328741 /* login.h */,
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FA322D030CEF74B1001761B3 /* match.c */,
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FA322D040CEF74B1001761B3 /* match.h */,
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FA322D050CEF74B1001761B3 /* messages.h */,
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@ -730,6 +735,7 @@
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FA2D564A11EA158B00D37A35 /* pam.c in Sources */,
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FAA97C57124A271400D5BBA9 /* sighandlers.c in Sources */,
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FAACD5F514A6099C006ED74F /* class.c in Sources */,
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FAD5853815272C2600328741 /* login.c in Sources */,
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);
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runOnlyForDeploymentPostprocessing = 0;
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};
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@ -42,6 +42,7 @@ ngircd_SOURCES = \
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irc-write.c \
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lists.c \
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log.c \
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login.c \
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match.c \
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numeric.c \
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op.c \
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@ -81,6 +82,7 @@ noinst_HEADERS = \
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irc-write.h \
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lists.h \
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log.h \
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login.h \
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match.h \
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messages.h \
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numeric.h \
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@ -18,22 +18,16 @@
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#include "imp.h"
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#include <assert.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <strings.h>
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#include <signal.h>
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#include <unistd.h>
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#include "ngircd.h"
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#include "conn-func.h"
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#include "class.h"
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#include "conf.h"
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#include "channel.h"
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#include "io.h"
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#include "log.h"
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#include "login.h"
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#include "messages.h"
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#include "pam.h"
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#include "parse.h"
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#include "irc.h"
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#include "irc-info.h"
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@ -42,13 +36,7 @@
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#include "exp.h"
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#include "irc-login.h"
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static bool Hello_User PARAMS(( CLIENT *Client ));
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static bool Hello_User_PostAuth PARAMS(( CLIENT *Client ));
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static void Kill_Nick PARAMS(( char *Nick, char *Reason ));
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#ifdef PAM
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static void cb_Read_Auth_Result PARAMS((int r_fd, UNUSED short events));
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#endif
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/**
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* Handler for the IRC "PASS" command.
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@ -280,7 +268,7 @@ IRC_NICK( CLIENT *Client, REQUEST *Req )
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/* If we received a valid USER command already then
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* register the new client! */
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if( Client_Type( Client ) == CLIENT_GOTUSER )
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return Hello_User( Client );
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return Login_User( Client );
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else
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Client_SetType( Client, CLIENT_GOTNICK );
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} else {
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@ -452,7 +440,7 @@ IRC_USER(CLIENT * Client, REQUEST * Req)
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LogDebug("Connection %d: got valid USER command ...",
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Client_Conn(Client));
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if (Client_Type(Client) == CLIENT_GOTNICK)
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return Hello_User(Client);
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return Login_User(Client);
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else
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Client_SetType(Client, CLIENT_GOTUSER);
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return CONNECTED;
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@ -875,7 +863,7 @@ IRC_PONG(CLIENT *Client, REQUEST *Req)
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if (auth_ping == atoi(Req->argv[0])) {
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Conn_SetAuthPing(conn, 0);
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if (Client_Type(Client) == CLIENT_WAITAUTHPING)
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Hello_User(Client);
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Login_User(Client);
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} else
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if (!IRC_WriteStrClient(Client,
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"To connect, type /QUOTE PONG %ld",
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@ -898,196 +886,6 @@ IRC_PONG(CLIENT *Client, REQUEST *Req)
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} /* IRC_PONG */
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/**
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* Initiate client registration.
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*
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* This function is called after the daemon received the required NICK and
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* USER commands of a new client. If the daemon is compiled with support for
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* PAM, the authentication sub-processs is forked; otherwise the global server
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* password is checked.
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*
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* @param Client The client logging in.
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* @returns CONNECTED or DISCONNECTED.
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*/
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static bool
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Hello_User(CLIENT * Client)
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{
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#ifdef PAM
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int pipefd[2], result;
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pid_t pid;
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#endif
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CONN_ID conn;
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assert(Client != NULL);
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conn = Client_Conn(Client);
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#ifndef STRICT_RFC
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if (Conf_AuthPing) {
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/* Did we receive the "auth PONG" already? */
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if (Conn_GetAuthPing(conn)) {
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Client_SetType(Client, CLIENT_WAITAUTHPING);
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LogDebug("Connection %d: Waiting for AUTH PONG ...", conn);
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return CONNECTED;
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}
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}
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#endif
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#ifdef PAM
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if (!Conf_PAM) {
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/* Don't do any PAM authentication at all, instead emulate
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* the beahiour of the daemon compiled without PAM support:
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* because there can't be any "server password", all
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* passwords supplied are classified as "wrong". */
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if(Client_Password(Client)[0] == '\0')
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return Hello_User_PostAuth(Client);
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Client_Reject(Client, "Non-empty password", false);
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return DISCONNECTED;
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}
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if (Conf_PAMIsOptional && strcmp(Client_Password(Client), "") == 0) {
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/* Clients are not required to send a password and to be PAM-
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* authenticated at all. If not, they won't become "identified"
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* and keep the "~" in their supplied user name.
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* Therefore it is sensible to either set Conf_PAMisOptional or
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* to enable IDENT lookups -- not both. */
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return Hello_User_PostAuth(Client);
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}
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/* Fork child process for PAM authentication; and make sure that the
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* process timeout is set higher than the login timeout! */
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pid = Proc_Fork(Conn_GetProcStat(conn), pipefd,
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cb_Read_Auth_Result, Conf_PongTimeout + 1);
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if (pid > 0) {
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LogDebug("Authenticator for connection %d created (PID %d).",
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conn, pid);
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return CONNECTED;
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} else {
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/* Sub process */
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Log_Init_Subprocess("Auth");
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Conn_CloseAllSockets(NONE);
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result = PAM_Authenticate(Client);
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if (write(pipefd[1], &result, sizeof(result)) != sizeof(result))
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Log_Subprocess(LOG_ERR,
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"Failed to pipe result to parent!");
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Log_Exit_Subprocess("Auth");
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exit(0);
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}
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#else
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/* Check global server password ... */
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if (strcmp(Client_Password(Client), Conf_ServerPwd) != 0) {
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/* Bad password! */
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Client_Reject(Client, "Bad server password", false);
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return DISCONNECTED;
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}
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return Hello_User_PostAuth(Client);
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#endif
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}
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#ifdef PAM
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/**
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* Read result of the authenticatior sub-process from pipe
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*
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* @param r_fd File descriptor of the pipe.
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* @param events (ignored IO specification)
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*/
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static void
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cb_Read_Auth_Result(int r_fd, UNUSED short events)
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{
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CONN_ID conn;
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CLIENT *client;
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int result;
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size_t len;
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PROC_STAT *proc;
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LogDebug("Auth: Got callback on fd %d, events %d", r_fd, events);
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conn = Conn_GetFromProc(r_fd);
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if (conn == NONE) {
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/* Ops, none found? Probably the connection has already
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* been closed!? We'll ignore that ... */
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io_close(r_fd);
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LogDebug("Auth: Got callback for unknown connection!?");
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return;
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}
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proc = Conn_GetProcStat(conn);
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client = Conn_GetClient(conn);
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/* Read result from pipe */
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len = Proc_Read(proc, &result, sizeof(result));
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Proc_Close(proc);
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if (len == 0)
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return;
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if (len != sizeof(result)) {
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Log(LOG_CRIT, "Auth: Got malformed result!");
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Client_Reject(client, "Internal error", false);
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return;
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}
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if (result == true) {
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Client_SetUser(client, Client_OrigUser(client), true);
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(void)Hello_User_PostAuth(client);
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} else
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Client_Reject(client, "Bad password", false);
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}
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#endif
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/**
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* Finish client registration.
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*
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* Introduce the new client to the network and send all "hello messages"
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* to it after authentication has been succeeded.
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*
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* @param Client The client logging in.
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* @returns CONNECTED or DISCONNECTED.
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*/
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static bool
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Hello_User_PostAuth(CLIENT *Client)
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{
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assert(Client != NULL);
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if (Class_HandleServerBans(Client) != CONNECTED)
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return DISCONNECTED;
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Client_Introduce(NULL, Client, CLIENT_USER);
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if (!IRC_WriteStrClient
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(Client, RPL_WELCOME_MSG, Client_ID(Client), Client_Mask(Client)))
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return false;
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if (!IRC_WriteStrClient
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(Client, RPL_YOURHOST_MSG, Client_ID(Client),
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Client_ID(Client_ThisServer()), PACKAGE_VERSION, TARGET_CPU,
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TARGET_VENDOR, TARGET_OS))
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return false;
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if (!IRC_WriteStrClient
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(Client, RPL_CREATED_MSG, Client_ID(Client), NGIRCd_StartStr))
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return false;
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if (!IRC_WriteStrClient
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(Client, RPL_MYINFO_MSG, Client_ID(Client),
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Client_ID(Client_ThisServer()), PACKAGE_VERSION, USERMODES,
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CHANMODES))
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return false;
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/* Features supported by this server (005 numeric, ISUPPORT),
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* see <http://www.irc.org/tech_docs/005.html> for details. */
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if (!IRC_Send_ISUPPORT(Client))
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return DISCONNECTED;
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if (!IRC_Send_LUSERS(Client))
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return DISCONNECTED;
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if (!IRC_Show_MOTD(Client))
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return DISCONNECTED;
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/* Suspend the client for a second ... */
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IRC_SetPenalty(Client, 1);
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return CONNECTED;
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}
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/**
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* Kill all users with a specific nick name in the network.
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*
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@ -0,0 +1,234 @@
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/*
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* ngIRCd -- The Next Generation IRC Daemon
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* Copyright (c)2001-2012 Alexander Barton (alex@barton.de) and Contributors.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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* Please read the file COPYING, README and AUTHORS for more information.
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*/
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#include "portab.h"
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/**
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* @file
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* Functions to deal with client logins
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*/
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#include "imp.h"
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#include <assert.h>
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#include <stdlib.h>
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#include <strings.h>
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#include <unistd.h>
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#include "defines.h"
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#include "conn.h"
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#include "class.h"
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#include "client.h"
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#include "channel.h"
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#include "conf.h"
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#include "io.h"
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#include "parse.h"
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#include "log.h"
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#include "messages.h"
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#include "ngircd.h"
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#include "pam.h"
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#include "irc-info.h"
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#include "irc-write.h"
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#include "exp.h"
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#include "login.h"
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#ifdef PAM
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static void cb_Read_Auth_Result PARAMS((int r_fd, UNUSED short events));
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#endif
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/**
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* Initiate client login.
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*
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* This function is called after the daemon received the required NICK and
|
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* USER commands of a new client. If the daemon is compiled with support for
|
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* PAM, the authentication sub-processs is forked; otherwise the global server
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* password is checked.
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*
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* @param Client The client logging in.
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* @returns CONNECTED or DISCONNECTED.
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*/
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GLOBAL bool
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Login_User(CLIENT * Client)
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{
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#ifdef PAM
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int pipefd[2], result;
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pid_t pid;
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#endif
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CONN_ID conn;
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assert(Client != NULL);
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conn = Client_Conn(Client);
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#ifndef STRICT_RFC
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if (Conf_AuthPing) {
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/* Did we receive the "auth PONG" already? */
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if (Conn_GetAuthPing(conn)) {
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Client_SetType(Client, CLIENT_WAITAUTHPING);
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LogDebug("Connection %d: Waiting for AUTH PONG ...", conn);
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return CONNECTED;
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}
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}
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#endif
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#ifdef PAM
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if (!Conf_PAM) {
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/* Don't do any PAM authentication at all, instead emulate
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* the beahiour of the daemon compiled without PAM support:
|
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* because there can't be any "server password", all
|
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* passwords supplied are classified as "wrong". */
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if(Client_Password(Client)[0] == '\0')
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return Login_User_PostAuth(Client);
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Client_Reject(Client, "Non-empty password", false);
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return DISCONNECTED;
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}
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if (Conf_PAMIsOptional && strcmp(Client_Password(Client), "") == 0) {
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/* Clients are not required to send a password and to be PAM-
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* authenticated at all. If not, they won't become "identified"
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* and keep the "~" in their supplied user name.
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* Therefore it is sensible to either set Conf_PAMisOptional or
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* to enable IDENT lookups -- not both. */
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return Login_User_PostAuth(Client);
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}
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|
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/* Fork child process for PAM authentication; and make sure that the
|
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* process timeout is set higher than the login timeout! */
|
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pid = Proc_Fork(Conn_GetProcStat(conn), pipefd,
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cb_Read_Auth_Result, Conf_PongTimeout + 1);
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if (pid > 0) {
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LogDebug("Authenticator for connection %d created (PID %d).",
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conn, pid);
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return CONNECTED;
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} else {
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/* Sub process */
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Log_Init_Subprocess("Auth");
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Conn_CloseAllSockets(NONE);
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result = PAM_Authenticate(Client);
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if (write(pipefd[1], &result, sizeof(result)) != sizeof(result))
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Log_Subprocess(LOG_ERR,
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"Failed to pipe result to parent!");
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Log_Exit_Subprocess("Auth");
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exit(0);
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}
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#else
|
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/* Check global server password ... */
|
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if (strcmp(Client_Password(Client), Conf_ServerPwd) != 0) {
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/* Bad password! */
|
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Client_Reject(Client, "Bad server password", false);
|
||||
return DISCONNECTED;
|
||||
}
|
||||
return Login_User_PostAuth(Client);
|
||||
#endif
|
||||
}
|
||||
|
||||
/**
|
||||
* Finish client registration.
|
||||
*
|
||||
* Introduce the new client to the network and send all "hello messages"
|
||||
* to it after authentication has been succeeded.
|
||||
*
|
||||
* @param Client The client logging in.
|
||||
* @return CONNECTED or DISCONNECTED.
|
||||
*/
|
||||
GLOBAL bool
|
||||
Login_User_PostAuth(CLIENT *Client)
|
||||
{
|
||||
assert(Client != NULL);
|
||||
|
||||
if (Class_HandleServerBans(Client) != CONNECTED)
|
||||
return DISCONNECTED;
|
||||
|
||||
Client_Introduce(NULL, Client, CLIENT_USER);
|
||||
|
||||
if (!IRC_WriteStrClient
|
||||
(Client, RPL_WELCOME_MSG, Client_ID(Client), Client_Mask(Client)))
|
||||
return false;
|
||||
if (!IRC_WriteStrClient
|
||||
(Client, RPL_YOURHOST_MSG, Client_ID(Client),
|
||||
Client_ID(Client_ThisServer()), PACKAGE_VERSION, TARGET_CPU,
|
||||
TARGET_VENDOR, TARGET_OS))
|
||||
return false;
|
||||
if (!IRC_WriteStrClient
|
||||
(Client, RPL_CREATED_MSG, Client_ID(Client), NGIRCd_StartStr))
|
||||
return false;
|
||||
if (!IRC_WriteStrClient
|
||||
(Client, RPL_MYINFO_MSG, Client_ID(Client),
|
||||
Client_ID(Client_ThisServer()), PACKAGE_VERSION, USERMODES,
|
||||
CHANMODES))
|
||||
return false;
|
||||
|
||||
/* Features supported by this server (005 numeric, ISUPPORT),
|
||||
* see <http://www.irc.org/tech_docs/005.html> for details. */
|
||||
if (!IRC_Send_ISUPPORT(Client))
|
||||
return DISCONNECTED;
|
||||
|
||||
if (!IRC_Send_LUSERS(Client))
|
||||
return DISCONNECTED;
|
||||
if (!IRC_Show_MOTD(Client))
|
||||
return DISCONNECTED;
|
||||
|
||||
/* Suspend the client for a second ... */
|
||||
IRC_SetPenalty(Client, 1);
|
||||
|
||||
return CONNECTED;
|
||||
}
|
||||
|
||||
#ifdef PAM
|
||||
|
||||
/**
|
||||
* Read result of the authenticatior sub-process from pipe
|
||||
*
|
||||
* @param r_fd File descriptor of the pipe.
|
||||
* @param events (ignored IO specification)
|
||||
*/
|
||||
static void
|
||||
cb_Read_Auth_Result(int r_fd, UNUSED short events)
|
||||
{
|
||||
CONN_ID conn;
|
||||
CLIENT *client;
|
||||
int result;
|
||||
size_t len;
|
||||
PROC_STAT *proc;
|
||||
|
||||
LogDebug("Auth: Got callback on fd %d, events %d", r_fd, events);
|
||||
conn = Conn_GetFromProc(r_fd);
|
||||
if (conn == NONE) {
|
||||
/* Ops, none found? Probably the connection has already
|
||||
* been closed!? We'll ignore that ... */
|
||||
io_close(r_fd);
|
||||
LogDebug("Auth: Got callback for unknown connection!?");
|
||||
return;
|
||||
}
|
||||
proc = Conn_GetProcStat(conn);
|
||||
client = Conn_GetClient(conn);
|
||||
|
||||
/* Read result from pipe */
|
||||
len = Proc_Read(proc, &result, sizeof(result));
|
||||
Proc_Close(proc);
|
||||
if (len == 0)
|
||||
return;
|
||||
|
||||
if (len != sizeof(result)) {
|
||||
Log(LOG_CRIT, "Auth: Got malformed result!");
|
||||
Client_Reject(client, "Internal error", false);
|
||||
return;
|
||||
}
|
||||
|
||||
if (result == true) {
|
||||
Client_SetUser(client, Client_OrigUser(client), true);
|
||||
(void)Login_User_PostAuth(client);
|
||||
} else
|
||||
Client_Reject(client, "Bad password", false);
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
/* -eof- */
|
||||
|
|
@ -0,0 +1,25 @@
|
|||
/*
|
||||
* ngIRCd -- The Next Generation IRC Daemon
|
||||
* Copyright (c)2001-2012 Alexander Barton (alex@barton.de) and Contributors.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
* Please read the file COPYING, README and AUTHORS for more information.
|
||||
*/
|
||||
|
||||
#ifndef __login_h__
|
||||
#define __login_h__
|
||||
|
||||
/**
|
||||
* @file
|
||||
* Functions to deal with client logins (header)
|
||||
*/
|
||||
|
||||
GLOBAL bool Login_User PARAMS((CLIENT * Client));
|
||||
GLOBAL bool Login_User_PostAuth PARAMS((CLIENT *Client));
|
||||
|
||||
#endif
|
||||
|
||||
/* -eof- */
|
||||
Loading…
Reference in New Issue