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Diff for /pegasus/src/Pegasus/Security/Cimservera/Attic/cimservera.cpp between version 1.6 and 1.6.30.8

version 1.6, 2006/01/30 16:18:29 version 1.6.30.8, 2007/01/02 17:53:23
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 // //
 //============================================================================== //==============================================================================
 // //
 // Author: Ben Heilbronn, Hewlett-Packard Company(ben_heilbronn@hp.com) 
 // 
 //         Parts of this code originated within PAMBasicAuthenticator. 
 // 
 // Modified By: Sushma Fernandes, Hewlett-Packard Company(sushma_fernandes@hp.com) 
 // 
 //%///////////////////////////////////////////////////////////////////////////// //%/////////////////////////////////////////////////////////////////////////////
  
 #include <Pegasus/Common/System.h> 
 #include <Pegasus/Common/String.h> 
 #include <Pegasus/Common/FileSystem.h> 
 #include <Pegasus/Common/PegasusVersion.h> 
 #include <Pegasus/Security/Authentication/PAMBasicAuthenticator.h> 
  
 #include <sys/stat.h> 
 #include <unistd.h> 
 #include <sys/types.h> 
 #include <sys/resource.h> 
 #include <string.h> 
 #include <strings.h> 
 #include <stdio.h> 
 #include <stdlib.h> 
  
 #include "cimservera.h" #include "cimservera.h"
  #include <cstdio>
  #include <syslog.h>
  
 PEGASUS_USING_STD; static void Exit(int status)
  
 PEGASUS_NAMESPACE_BEGIN 
  
 #include <security/pam_appl.h> 
  
 #define BUFFERLEN    1024 
 #define HEADER_LEN      4 
  
 typedef struct 
 { {
     CString userPassword;     syslog(LOG_INFO, "exit(%d)", status);
 } APP_DATA;     exit(status);
  }
  
 // Initialize the constants. static ssize_t Recv(int sock, void* buffer, size_t size)
  {
      size_t r = size;
      char* p = (char*)buffer;
  
 const char Cimservera::OPERATION_PAM_AUTHENTICATION = 'A';     if (size == 0)
          return -1;
  
 const char Cimservera::OPERATION_PAM_ACCT_MGMT = 'M';     while (r)
      {
          ssize_t n;
  
 const char Cimservera::PAM_OPERATION_SUCCESS = 'T';         CIMSERVERA_RESTART(read(sock, p, r), n);
  
 const char Cimservera::PAM_OPERATION_FAILURE = 'F';         if (n == -1)
              return -1;
          else if (n == 0)
              return size - r;
  
 /* constructor. */         r -= n;
 Cimservera::Cimservera()          p += n;
 {  
 } }
  
 /* destructor. */     return size - r;
 Cimservera::~Cimservera()  
 {  
 } }
  
 Boolean Cimservera::authenticateByPAM( int main(int argc, char* argv[])
     const String& userName,  
     const String& password)  
 { {
     Boolean authenticated = false;     // Open syslog:
     struct pam_conv pconv; 
     pam_handle_t *phandle; 
     char *name; 
     APP_DATA mydata; 
  
     const char *service = "wbem";     openlog("cimservera", LOG_PID, LOG_AUTH);
      syslog(LOG_INFO, "started");
  
     //     // ATTN: Insert fingerprint logic to detect running of this program as
     // Store the password for PAM authentication     // non-child of executor.
     // 
     mydata.userPassword = password.getCString(); 
  
     pconv.conv = Cimservera::PAMCallback;     // Check argumnents.
     pconv.appdata_ptr = &mydata; 
  
     //     if (argc != 2)
     //Call pam_start since you need to before making any other PAM calls 
     // 
     if ( ( pam_start(service,  
         (const char *)userName.getCString(), &pconv, &phandle) ) != PAM_SUCCESS )  
     {     {
         return (authenticated);         fprintf(stderr, "Usage: %s <socket-number>\n", argv[0]);
          Exit(1);
     }     }
  
     //     // Open socket stream.
     //Call pam_authenticate to authenticate the user 
     // 
     if ( ( pam_authenticate(phandle, 0) ) == PAM_SUCCESS )  
     { 
         // 
         //Call pam_acct_mgmt, to check if the user account is valid. This includes  
         //checking for password and account expiration, as well as verifying access  
         //hour restrictions. 
         // 
         if ( ( pam_acct_mgmt(phandle, 0) ) == PAM_SUCCESS )  
         { 
             authenticated = true; 
         } 
     } 
  
     //     int sock;
     //Call pam_end to end our PAM work 
     // 
     pam_end(phandle, 0); 
  
     return (authenticated); 
 } 
  
 #if defined PEGASUS_OS_LINUX 
 Sint32 Cimservera::PAMCallback(Sint32 num_msg, const struct pam_message **msg, 
         struct pam_response **resp, void *appdata_ptr) 
 #else 
 Sint32 Cimservera::PAMCallback(Sint32 num_msg, struct pam_message **msg, 
         struct pam_response **resp, void *appdata_ptr) 
 #endif 
 { {
     //         char* end;
     // Copy the application specific data from the PAM structure.         long x = strtoul(argv[1], &end, 10);
     // 
     APP_DATA *mydata; 
     mydata = (APP_DATA *) appdata_ptr; 
  
     //          if (*end != '\0')
     // Allocate the response buffers  
     //  
     if ( num_msg > 0 )  
     { 
         //  
         // Since resp->resp needs to be initialized in all possible scenarios, 
         // use calloc for memory allocation.  
         // 
         *resp = (struct pam_response *)calloc(num_msg, sizeof(struct pam_response)); 
  
         if ( *resp == NULL )  
         { 
             return PAM_BUF_ERR; 
         } 
     }  
     else  
     {     {
         return PAM_CONV_ERR;             fprintf(stderr, "%s : bad socket argument: %s\n", argv[0], argv[1]);
              Exit(1);
     }     }
  
     for ( Sint32 i = 0; i < num_msg; i++ )          sock = int(x);
     { 
         switch ( msg[i]->msg_style )  
         { 
             case PAM_PROMPT_ECHO_OFF: 
                 //  
                 // copy the user password 
                 //  
                 resp[i]->resp = (char *)malloc(PAM_MAX_MSG_SIZE); 
                 strcpy(resp[i]->resp, mydata->userPassword); 
                 resp[i]->resp_retcode = 0; 
                 break; 
  
             default: 
                return PAM_CONV_ERR; 
         } 
     }     }
  
     return PAM_SUCCESS;     // Wait on request.
 } 
  
 Boolean Cimservera::performAcctMgmt (const String& userName) 
 { 
     Boolean authenticated = false; 
     struct pam_conv pconv; 
     pam_handle_t *phandle; 
     char *name; 
     APP_DATA mydata; 
  
     const char *service = "wbem";     CimserveraRequest request;
     pconv.conv = PAMBasicAuthenticator::pamValidateUserCallback; 
     pconv.appdata_ptr = &mydata; 
  
     //     // Wait on request.
     // Call pam_start since you need to before making any other PAM calls     if (Recv(sock, &request, sizeof(request)) != sizeof(request))
     // 
     if ( pam_start(service, 
         (const char *)userName.getCString(), &pconv, &phandle) != PAM_SUCCESS) 
     {     {
         return (authenticated);         close(sock);
     }         Exit(1);
  
     // 
     // Call pam_acct_mgmt, to check if the user account is valid. This include s 
     // checking for account expiration, as well as verifying access 
     // hour restrictions. 
     // 
     if ( pam_acct_mgmt(phandle, 0) == PAM_SUCCESS ) 
     { 
          authenticated = true; 
     } 
  
     // 
     //Call pam_end to end our PAM work 
     // 
     pam_end(phandle, 0); 
  
     return (authenticated); 
 } }
  
 PEGASUS_NAMESPACE_END;     if (strcmp(request.arg0, "authenticate") == 0)
 PEGASUS_USING_PEGASUS; 
  
 int main(int argc, char* argv[]) 
 { {
     int  n, len;         int status = PAMAuthenticateInProcess(request.arg1, request.arg2);
     char username[BUFFERLEN], password[BUFFERLEN], operation[BUFFERLEN]; 
     char * _username = &username[0]; 
     char * _password = &password[0]; 
     char username_len[10], password_len[10], operation_len[10]; 
     char return_buf[2]; 
  
     typedef struct         if (status != 0)
     {     {
         CString userPassword;             syslog(LOG_WARNING, "PAM authentication failed on user \"%s\"",
     } APP_DATA;                 request.arg1);
  
     Boolean authenticated; 
  
     // STDIN and STDOUT are used on the back-end for reading and writing 
  
    for (;;) {                        // Just loop on username/passwords/opcode 
  
      authenticated = false; 
  
      // Read in the username 
  
      len = read(STDIN_FILENO, username_len, HEADER_LEN); 
      if (len != HEADER_LEN) { 
         break; 
      }      }
      username_len[HEADER_LEN] = '\0'; 
      n = atoi(username_len); 
      read(STDIN_FILENO, username, n); 
      username[n] = '\0'; 
  
      // Read in the password 
  
      len = read(STDIN_FILENO, password_len, HEADER_LEN);         Exit(status == 0 ? 0 : 1);
      if (len != HEADER_LEN) { 
         break; 
      }      }
      password_len[HEADER_LEN] = '\0';     else if (strcmp(request.arg0, "validateUser") == 0)
      n = atoi(password_len); 
      read(STDIN_FILENO, password, n); 
      password[n] = '\0'; 
  
     // Read in the operation 
  
      len = read(STDIN_FILENO, operation_len, HEADER_LEN); 
      if (len != HEADER_LEN) { 
         break; 
      } 
      operation_len[HEADER_LEN] = '\0'; 
      n = atoi(operation_len); 
      read(STDIN_FILENO, operation, n); 
      operation[n] = '\0'; 
  
      // 
      // Check the operation flag. 
      // 
      if (operation[0] == Cimservera::OPERATION_PAM_AUTHENTICATION) 
      {       {
          authenticated = Cimservera::authenticateByPAM(_username, _password);         int status = PAMValidateUserInProcess(request.arg1);
      } 
      else if (operation[0] == Cimservera::OPERATION_PAM_ACCT_MGMT)         if (status != 0)
      {      {
          authenticated = Cimservera::performAcctMgmt(_username);             syslog(LOG_WARNING, "PAM user validation failed on user \"%s\"",
                  request.arg1);
      }      }
  
      if (authenticated)          Exit(status == 0 ? 0 : 1);
      {     }
          return_buf[0] = Cimservera::PAM_OPERATION_SUCCESS;     else
      } else  
      {      {
          return_buf[0] = Cimservera::PAM_OPERATION_FAILURE;         syslog(LOG_WARNING, "invalid request");
          close(sock);
          Exit(1);
      }      }
      return_buf[1] = '\0'; 
           
      write(STDOUT_FILENO, return_buf, 1);     close(sock);
    }     Exit(0);
 } }

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