src/common.h

   1 /*
   2     Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015,
   3     2016
   4     Ben Kibbey <bjk@luxsci.net>
   5
   6     This file is part of pwmd.
   7
   8     Pwmd is free software: you can redistribute it and/or modify
   9     it under the terms of the GNU General Public License as published by
  10     the Free Software Foundation, either version 2 of the License, or
  11     (at your option) any later version.
  12
  13     Pwmd is distributed in the hope that it will be useful,
  14     but WITHOUT ANY WARRANTY; without even the implied warranty of
  15     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16     GNU General Public License for more details.
  17
  18     You should have received a copy of the GNU General Public License
  19     along with Pwmd.  If not, see <http://www.gnu.org/licenses/>.
  20 */
  21 #ifndef COMMON_H
  22 #define COMMON_H
  23
  24 #include <sys/types.h>
  25 #include <sys/stat.h>
  26 #include <pthread.h>
  27 #include "pwmd-error.h"
  28 #include <assuan.h>
  29 #include <stdint.h>
  30 #include <libxml/xmlerror.h>
  31 #include <pwd.h>
  32 #include <time.h>
  33
  34 #ifdef ENABLE_NLS
  35 #ifdef HAVE_LOCALE_H
  36 #include <locale.h>
  37 #endif
  38 #endif
  39
  40 #ifdef HAVE_LIMITS_H
  41 #include <limits.h>
  42 #ifndef LINE_MAX
  43 #ifdef _POSIX2_LINE_MAX
  44 #define LINE_MAX _POSIX2_LINE_MAX
  45 #else
  46 #define LINE_MAX 2048
  47 #endif
  48 #endif
  49 #endif
  50
  51 #ifndef _
  52 #include "gettext.h"
  53 #define _(msgid) gettext(msgid)
  54 #endif
  55
  56 #ifdef WITH_GNUTLS
  57 #include "tls.h"
  58 #endif
  59 #include "status.h"
  60
  61 #define CLIENT_STATE_UNKNOWN    0
  62 #define CLIENT_STATE_INIT       1
  63 #define CLIENT_STATE_IDLE       2
  64 #define CLIENT_STATE_COMMAND    3
  65 #define CLIENT_STATE_DISCON     4
  66
  67 struct client_thread_s
  68 {
  69   pthread_t tid;
  70   char *name;
  71   int fd;
  72   pthread_mutex_t status_mutex;
  73   struct status_msg_s *msg_queue;
  74   int status_msg_pipe[2];
  75   int wrote_status;
  76   struct client_s *cl;
  77   assuan_peercred_t peer;
  78   unsigned state;
  79   time_t conntime;
  80 #ifdef WITH_GNUTLS
  81   int timeout;
  82   int buffer_timeout;
  83   int last_buffer_size;
  84   int remote;
  85   struct tls_s *tls;
  86   char *peeraddr;
  87 #endif
  88   int cancel;
  89 };
  90
  91 struct client_s
  92 {
  93   assuan_context_t ctx;
  94   int flock_fd;
  95   void *doc;                    /* xmlDocPtr */
  96   xmlErrorPtr xml_error;
  97   char *filename;
  98   struct client_thread_s *thd;
  99   struct crypto_s *crypto;
 100   uint32_t opts;
 101   uint32_t flags;
 102   char *import_root;
 103   long lock_timeout;            /* In tenths of a second. */
 104   gpg_error_t last_rc;
 105   char *last_error;             /* ELOOP element path. */
 106   unsigned char *crc;           /* Of the data file. */
 107   int no_access_param;          /* Treat no "access" config param as allowed. */
 108 };
 109
 110 pthread_key_t thread_name_key;
 111 pthread_mutex_t cn_mutex;
 112 struct slist_s *cn_thread_list;
 113 int exiting;
 114
 115 void log_write (const char *fmt, ...);
 116 int assuan_log_cb (assuan_context_t ctx, void *data, unsigned cat,
 117                    const char *msg);
 118 gpg_error_t send_error (assuan_context_t ctx, gpg_error_t e);
 119 gpg_error_t do_validate_peer (assuan_context_t ctx, const char *section,
 120                               assuan_peercred_t * peer);
 121 gpg_error_t acl_check_common (struct client_s *client, const char *user,
 122                               uid_t uid, gid_t gid, int *allowed);
 123 gpg_error_t peer_is_invoker(struct client_s *client);
 124 void update_client_state (struct client_s *client, unsigned s);
 125 gpg_error_t lock_flock (assuan_context_t ctx, const char *filename, int type,
 126                         int *fd);
 127 void unlock_flock (int *fd);
 128
 129 #endif