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RANGER-842: modified to create a separate module for PAM credential v…
…alidation Signed-off-by: rmani <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,3 @@ | ||
| /target/ | ||
| /bin/ | ||
| .settings/ |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,55 @@ | ||
| <?xml version="1.0" encoding="UTF-8"?> | ||
| <!-- | ||
| Licensed to the Apache Software Foundation (ASF) under one or more | ||
| contributor license agreements. See the NOTICE file distributed with | ||
| this work for additional information regarding copyright ownership. | ||
| The ASF licenses this file to You under the Apache License, Version 2.0 | ||
| (the "License"); you may not use this file except in compliance with | ||
| the License. You may obtain a copy of the License at | ||
| http://www.apache.org/licenses/LICENSE-2.0 | ||
| Unless required by applicable law or agreed to in writing, software | ||
| distributed under the License is distributed on an "AS IS" BASIS, | ||
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| See the License for the specific language governing permissions and | ||
| limitations under the License. | ||
| --> | ||
| <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> | ||
| <modelVersion>4.0.0</modelVersion> | ||
| <parent> | ||
| <groupId>org.apache.ranger</groupId> | ||
| <artifactId>ranger</artifactId> | ||
| <version>0.6.0-SNAPSHOT</version> | ||
| <relativePath>..</relativePath> | ||
| </parent> | ||
| <artifactId>pamCredValidator</artifactId> | ||
| <packaging>uexe</packaging> | ||
| <name>PAM Authenticator</name> | ||
| <description>PAM authentication service</description> | ||
| <build> | ||
| <plugins> | ||
| <plugin> | ||
| <groupId>org.codehaus.mojo</groupId> | ||
| <artifactId>native-maven-plugin</artifactId> | ||
| <extensions>true</extensions> | ||
| <configuration> | ||
| <compilerStartOptions> | ||
| <compilerStartOption>${commonCompilerOptions}</compilerStartOption> | ||
| </compilerStartOptions> | ||
| <sources> | ||
| <source> | ||
| <directory>src/main/c</directory> | ||
| <includes> | ||
| <include>**/*.c</include> | ||
| </includes> | ||
| </source> | ||
| </sources> | ||
| <linkerEndOptions> | ||
| <linkerEndOption>-lpam</linkerEndOption> | ||
| </linkerEndOptions> | ||
| </configuration> | ||
| </plugin> | ||
| </plugins> | ||
| </build> | ||
| </project> |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,104 @@ | ||
| /* | ||
| * Licensed to the Apache Software Foundation (ASF) under one or more | ||
| * contributor license agreements. See the NOTICE file distributed with | ||
| * this work for additional information regarding copyright ownership. | ||
| * The ASF licenses this file to You under the Apache License, Version 2.0 | ||
| * (the "License"); you may not use this file except in compliance with | ||
| * the License. You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
|
||
| /* | ||
| You need to add the following (or equivalent) to the | ||
| /etc/pam.d/ranger-remote file: | ||
| # check authorization | ||
| auth required pam_unix.so | ||
| account required pam_unix.so | ||
| */ | ||
|
|
||
| #include <stdio.h> | ||
| #include <stdarg.h> | ||
| #include <unistd.h> | ||
| #include <stdlib.h> | ||
| #include <pwd.h> | ||
| #include <string.h> | ||
| #include <sys/types.h> | ||
| #include <security/pam_appl.h> | ||
|
|
||
| int pamconv(int num_msg, const struct pam_message **msg, struct pam_response **resp, void *appdata_ptr) { | ||
| if (num_msg != 1 || msg[0]->msg_style != PAM_PROMPT_ECHO_OFF) { | ||
| fprintf(stderr, "ERROR: Unexpected PAM conversation '%d/%s'\n", msg[0]->msg_style, msg[0]->msg); | ||
| return PAM_CONV_ERR; | ||
| } | ||
| if (!appdata_ptr) { | ||
| fprintf(stderr, "ERROR: No password available to conversation!\n"); | ||
| return PAM_CONV_ERR; | ||
| } | ||
| *resp = calloc(num_msg, sizeof(struct pam_response)); | ||
| if (!*resp) { | ||
| fprintf(stderr, "ERROR: Out of memory!\n"); | ||
| return PAM_CONV_ERR; | ||
| } | ||
| (*resp)[0].resp = strdup((char *) appdata_ptr); | ||
| (*resp)[0].resp_retcode = 0; | ||
|
|
||
| return ((*resp)[0].resp ? PAM_SUCCESS : PAM_CONV_ERR); | ||
| } | ||
|
|
||
| struct pam_conv conv = { pamconv, NULL }; | ||
|
|
||
| int main(int ac, char **av, char **ev) | ||
| { | ||
| char username[64] ; | ||
| char password[64] ; | ||
| char line[512] ; | ||
|
|
||
| int retval; | ||
| pam_handle_t *pamh = NULL; | ||
|
|
||
| fgets(line,512,stdin) ; | ||
| sscanf(line, "LOGIN:%s %s",username,password) ; | ||
| conv.appdata_ptr = (char *) password; | ||
|
|
||
| retval = pam_start("ranger-remote", username, &conv, &pamh); | ||
| if (retval != PAM_SUCCESS) { | ||
| /* why expose this? */ | ||
| fprintf(stdout, "FAILED: [%s] does not exists.\n", username) ; | ||
| exit(1); | ||
| } | ||
|
|
||
| retval = pam_authenticate(pamh, 0); | ||
| if (retval != PAM_SUCCESS) { | ||
| fprintf(stdout, "FAILED: Password did not match.\n") ; | ||
| exit(1); | ||
| } | ||
|
|
||
| /* authorize */ | ||
| retval = pam_acct_mgmt(pamh, 0); | ||
| if (retval != PAM_SUCCESS) { | ||
| fprintf(stdout, "FAILED: [%s] is not authorized.\n", username) ; | ||
| exit(1); | ||
| } | ||
|
|
||
| /* establish the requested credentials */ | ||
| if ((retval = pam_setcred(pamh, PAM_ESTABLISH_CRED)) != PAM_SUCCESS) { | ||
| fprintf(stdout, "FAILED: Error setting credentials for [%s].\n", username) ; | ||
| exit(1); | ||
| } | ||
|
|
||
| /* not opening a session, as logout has not been implemented as a remote service */ | ||
| fprintf(stdout, "OK:\n") ; | ||
|
|
||
| if (pamh) { | ||
| pam_end(pamh, retval); | ||
| } | ||
|
|
||
| exit(0) ; | ||
| } |
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