| 1 | /* |
| 2 | * QEMU PAM authorization driver |
| 3 | * |
| 4 | * Copyright (c) 2018 Red Hat, Inc. |
| 5 | * |
| 6 | * This library is free software; you can redistribute it and/or |
| 7 | * modify it under the terms of the GNU Lesser General Public |
| 8 | * License as published by the Free Software Foundation; either |
| 9 | * version 2.1 of the License, or (at your option) any later version. |
| 10 | * |
| 11 | * This library is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 14 | * Lesser General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU Lesser General Public |
| 17 | * License along with this library; if not, see <http://www.gnu.org/licenses/>. |
| 18 | * |
| 19 | */ |
| 20 | |
| 21 | #ifndef QAUTHZ_PAMACCT_H |
| 22 | #define QAUTHZ_PAMACCT_H |
| 23 | |
| 24 | #include "authz/base.h" |
| 25 | #include "qom/object.h" |
| 26 | |
| 27 | |
| 28 | #define TYPE_QAUTHZ_PAM "authz-pam" |
| 29 | |
| 30 | OBJECT_DECLARE_SIMPLE_TYPE(QAuthZPAM, |
| 31 | QAUTHZ_PAM) |
| 32 | |
| 33 | |
| 34 | |
| 35 | /** |
| 36 | * QAuthZPAM: |
| 37 | * |
| 38 | * This authorization driver provides a PAM mechanism |
| 39 | * for granting access by matching user names against a |
| 40 | * list of globs. Each match rule has an associated policy |
| 41 | * and a catch all policy applies if no rule matches |
| 42 | * |
| 43 | * To create an instance of this class via QMP: |
| 44 | * |
| 45 | * { |
| 46 | * "execute": "object-add", |
| 47 | * "arguments": { |
| 48 | * "qom-type": "authz-pam", |
| 49 | * "id": "authz0", |
| 50 | * "parameters": { |
| 51 | * "service": "qemu-vnc-tls" |
| 52 | * } |
| 53 | * } |
| 54 | * } |
| 55 | * |
| 56 | * The driver only uses the PAM "account" verification |
| 57 | * subsystem. The above config would require a config |
| 58 | * file /etc/pam.d/qemu-vnc-tls. For a simple file |
| 59 | * lookup it would contain |
| 60 | * |
| 61 | * account requisite pam_listfile.so item=user sense=allow \ |
| 62 | * file=/etc/qemu/vnc.allow |
| 63 | * |
| 64 | * The external file would then contain a list of usernames. |
| 65 | * If x509 cert was being used as the username, a suitable |
| 66 | * entry would match the distinguish name: |
| 67 | * |
| 68 | * CN=laptop.berrange.com,O=Berrange Home,L=London,ST=London,C=GB |
| 69 | * |
| 70 | * On the command line it can be created using |
| 71 | * |
| 72 | * -object authz-pam,id=authz0,service=qemu-vnc-tls |
| 73 | * |
| 74 | */ |
| 75 | struct QAuthZPAM { |
| 76 | QAuthZ parent_obj; |
| 77 | |
| 78 | char *service; |
| 79 | }; |
| 80 | |
| 81 | |
| 82 | |
| 83 | |
| 84 | QAuthZPAM *qauthz_pam_new(const char *id, |
| 85 | const char *service, |
| 86 | Error **errp); |
| 87 | |
| 88 | #endif /* QAUTHZ_PAMACCT_H */ |