mirror of
https://github.com/kingk85/uFTP.git
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131 lines
3.2 KiB
C
Executable File
131 lines
3.2 KiB
C
Executable File
/*
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* auth.c
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*
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* Created on: 30 dic 2018
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* Author: ugo
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*/
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#ifdef PAM_SUPPORT_ENABLED
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#include <unistd.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <pwd.h>
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#include <security/pam_appl.h>
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#include "auth.h"
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#include "ftpData.h"
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#include "../debugHelper.h"
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struct pam_response *reply;
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// //function used to get user input
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int function_conversation(int num_msg, const struct pam_message **msg, struct pam_response **resp, void *appdata_ptr)
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{
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*resp = reply;
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return PAM_SUCCESS;
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}
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int authenticateSystem(const char *username, const char *password)
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{
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const struct pam_conv local_conversation = { function_conversation, NULL };
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pam_handle_t *local_auth_handle = NULL; // this gets set by pam_start
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int retval;
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retval = pam_start("sudo", username, &local_conversation, &local_auth_handle);
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if (retval != PAM_SUCCESS)
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{
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my_printf("pam_start returned: %d\n ", retval);
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return 0;
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}
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reply = (struct pam_response *)malloc(sizeof(struct pam_response));
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reply[0].resp = strdup(password);
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reply[0].resp_retcode = 0;
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retval = pam_authenticate(local_auth_handle, 0);
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if (retval != PAM_SUCCESS)
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{
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if (retval == PAM_AUTH_ERR)
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{
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my_printf("Authentication failure.\n");
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}
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else
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{
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my_printf("pam_authenticate returned %d\n", retval);
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}
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return 0;
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}
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retval = pam_end(local_auth_handle, retval);
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if (retval != PAM_SUCCESS)
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{
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my_printf("pam_end returned\n");
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return 0;
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}
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return 1;
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}
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void loginCheck(char *name, char *password, loginDataType *login, DYNMEM_MemoryTable_DataType **memoryTable)
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{
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if (authenticateSystem(name, password) == 1)
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{
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struct passwd *pass;
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pass = getpwnam(name);
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if (pass == NULL)
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{
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login->userLoggedIn = 0;
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return;
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}
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else
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{
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//my_printf("Authenticate with %s - %s through system\n", login, password);
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setDynamicStringDataType(&login->name, name, strlen(name), &*memoryTable);
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setDynamicStringDataType(&login->homePath, pass->pw_dir, strlen(pass->pw_dir), &*memoryTable);
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//setDynamicStringDataType(&login->homePath, "/", 1, &*memoryTable);
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setDynamicStringDataType(&login->absolutePath, pass->pw_dir, strlen(pass->pw_dir), &*memoryTable);
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setDynamicStringDataType(&login->ftpPath, "/", strlen("/"), &*memoryTable);
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if (login->homePath.text[login->homePath.textLen-1] != '/')
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{
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appendToDynamicStringDataType(&login->homePath, "/", 1, &*memoryTable);
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}
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if (login->absolutePath.text[login->absolutePath.textLen-1] != '/')
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{
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appendToDynamicStringDataType(&login->absolutePath, "/", 1, &*memoryTable);
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}
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//setDynamicStringDataType(&login->ftpPath, "/", strlen("/"), &*memoryTable);
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login->ownerShip.uid = pass->pw_gid;
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login->ownerShip.gid = pass->pw_uid;
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login->ownerShip.ownerShipSet = 1;
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login->userLoggedIn = 1;
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// my_printf("\nLogin as: %s", pass->pw_name);
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// my_printf("\nPasswd: %s", pass->pw_passwd);
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// my_printf("\nDir: %s", pass->pw_dir);
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// my_printf("\nGid: %d", pass->pw_gid);
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// my_printf("\nUid: %d", pass->pw_uid);
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// my_printf("\nlogin->homePath.text: %s", login->homePath.text);
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// my_printf("\nlogin->absolutePath.text: %s", login->absolutePath.text);
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}
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}
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}
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#endif
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