Fri Jul 24 00:41:03 2009

Asterisk developer's documentation


res_phoneprov.c

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00001 /*
00002  * Asterisk -- An open source telephony toolkit.
00003  *
00004  * Copyright (C) 1999 - 2008, Digium, Inc.
00005  *
00006  * Mark Spencer <markster@digium.com>
00007  * Matthew Brooks <mbrooks@digium.com>
00008  * Terry Wilson <twilson@digium.com>
00009  *
00010  * See http://www.asterisk.org for more information about
00011  * the Asterisk project. Please do not directly contact
00012  * any of the maintainers of this project for assistance;
00013  * the project provides a web site, mailing lists and IRC
00014  * channels for your use.
00015  *
00016  * This program is free software, distributed under the terms of
00017  * the GNU General Public License Version 2. See the LICENSE file
00018  * at the top of the source tree.
00019  */
00020 
00021 /*! \file
00022  *
00023  * \brief Phone provisioning application for the asterisk internal http server
00024  *
00025  * \author Matthew Brooks <mbrooks@digium.com>
00026  * \author Terry Wilson <twilson@digium.com>
00027  */
00028 
00029 /*** MODULEINFO
00030    <depend>func_strings</depend>
00031  ***/
00032 
00033 #include "asterisk.h"
00034 
00035 #include <sys/ioctl.h>
00036 #include <sys/socket.h>
00037 #include <net/if.h>
00038 #ifdef SOLARIS
00039 #include <sys/sockio.h>
00040 #endif
00041 ASTERISK_FILE_VERSION(__FILE__, "$Revision: 168157 $")
00042 
00043 #include "asterisk/channel.h"
00044 #include "asterisk/file.h"
00045 #include "asterisk/paths.h"
00046 #include "asterisk/pbx.h"
00047 #include "asterisk/cli.h"
00048 #include "asterisk/module.h"
00049 #include "asterisk/http.h"
00050 #include "asterisk/utils.h"
00051 #include "asterisk/app.h"
00052 #include "asterisk/strings.h"
00053 #include "asterisk/stringfields.h"
00054 #include "asterisk/options.h"
00055 #include "asterisk/config.h"
00056 #include "asterisk/acl.h"
00057 #include "asterisk/astobj2.h"
00058 #include "asterisk/ast_version.h"
00059 
00060 #ifdef LOW_MEMORY
00061 #define MAX_PROFILE_BUCKETS 1
00062 #define MAX_ROUTE_BUCKETS 1
00063 #define MAX_USER_BUCKETS 1
00064 #else
00065 #define MAX_PROFILE_BUCKETS 17
00066 #define MAX_ROUTE_BUCKETS 563
00067 #define MAX_USER_BUCKETS 563
00068 #endif /* LOW_MEMORY */
00069 
00070 #define VAR_BUF_SIZE 4096
00071 
00072 /*! \brief for use in lookup_iface */
00073 static struct in_addr __ourip = { .s_addr = 0x00000000, };
00074 
00075 /* \note This enum and the pp_variable_list must be in the same order or
00076  * bad things happen! */
00077 enum pp_variables {
00078    PP_MACADDRESS,
00079    PP_USERNAME,
00080    PP_FULLNAME,
00081    PP_SECRET,
00082    PP_LABEL,
00083    PP_CALLERID,
00084    PP_TIMEZONE,
00085    PP_LINENUMBER,
00086    PP_VAR_LIST_LENGTH,  /* This entry must always be the last in the list */
00087 };
00088 
00089 /*! \brief Lookup table to translate between users.conf property names and
00090  * variables for use in phoneprov templates */
00091 static const struct pp_variable_lookup {
00092    enum pp_variables id;
00093    const char * const user_var;
00094    const char * const template_var;
00095 } pp_variable_list[] = {
00096    { PP_MACADDRESS, "macaddress", "MAC" },
00097    { PP_USERNAME, "username", "USERNAME" },
00098    { PP_FULLNAME, "fullname", "DISPLAY_NAME" },
00099    { PP_SECRET, "secret", "SECRET" },
00100    { PP_LABEL, "label", "LABEL" },
00101    { PP_CALLERID, "cid_number", "CALLERID" },
00102    { PP_TIMEZONE, "timezone", "TIMEZONE" },
00103    { PP_LINENUMBER, "linenumber", "LINE" },
00104 };
00105 
00106 /*! \brief structure to hold file data */
00107 struct phoneprov_file {
00108    AST_DECLARE_STRING_FIELDS(
00109       AST_STRING_FIELD(format);  /*!< After variable substitution, becomes route->uri */
00110       AST_STRING_FIELD(template); /*!< Template/physical file location */
00111       AST_STRING_FIELD(mime_type);/*!< Mime-type of the file */
00112    );
00113    AST_LIST_ENTRY(phoneprov_file) entry;
00114 };
00115 
00116 /*! \brief structure to hold phone profiles read from phoneprov.conf */
00117 struct phone_profile {
00118    AST_DECLARE_STRING_FIELDS(
00119       AST_STRING_FIELD(name); /*!< Name of phone profile */
00120       AST_STRING_FIELD(default_mime_type);   /*!< Default mime type if it isn't provided */
00121       AST_STRING_FIELD(staticdir);  /*!< Subdirectory that static files are stored in */
00122    );
00123    struct varshead *headp; /*!< List of variables set with 'setvar' in phoneprov.conf */
00124    AST_LIST_HEAD_NOLOCK(, phoneprov_file) static_files;  /*!< List of static files */
00125    AST_LIST_HEAD_NOLOCK(, phoneprov_file) dynamic_files; /*!< List of dynamic files */
00126 };
00127 
00128 struct extension {
00129    AST_DECLARE_STRING_FIELDS(
00130       AST_STRING_FIELD(name);
00131    );
00132    int index;
00133    struct varshead *headp; /*!< List of variables to substitute into templates */
00134    AST_LIST_ENTRY(extension) entry;
00135 };
00136 
00137 /*! \brief structure to hold users read from users.conf */
00138 struct user {
00139    AST_DECLARE_STRING_FIELDS(
00140       AST_STRING_FIELD(macaddress); /*!< Mac address of user's phone */
00141    );
00142    struct phone_profile *profile;   /*!< Profile the phone belongs to */
00143    AST_LIST_HEAD_NOLOCK(, extension) extensions;
00144 };
00145 
00146 /*! \brief structure to hold http routes (valid URIs, and the files they link to) */
00147 struct http_route {
00148    AST_DECLARE_STRING_FIELDS(
00149       AST_STRING_FIELD(uri);  /*!< The URI requested */
00150    );
00151    struct phoneprov_file *file;  /*!< The file that links to the URI */
00152    struct user *user;   /*!< The user that has variables to substitute into the file
00153                    * NULL in the case of a static route */
00154 };
00155 
00156 static struct ao2_container *profiles;
00157 static struct ao2_container *http_routes;
00158 static struct ao2_container *users;
00159 
00160 /*! \brief Extensions whose mime types we think we know */
00161 static struct {
00162    char *ext;
00163    char *mtype;
00164 } mimetypes[] = {
00165    { "png", "image/png" },
00166    { "xml", "text/xml" },
00167    { "jpg", "image/jpeg" },
00168    { "js", "application/x-javascript" },
00169    { "wav", "audio/x-wav" },
00170    { "mp3", "audio/mpeg" },
00171 };
00172 
00173 static char global_server[80] = ""; /*!< Server to substitute into templates */
00174 static char global_serverport[6] = ""; /*!< Server port to substitute into templates */
00175 static char global_default_profile[80] = ""; /*!< Default profile to use if one isn't specified */ 
00176 
00177 /*! \brief List of global variables currently available: VOICEMAIL_EXTEN, EXTENSION_LENGTH */
00178 static struct varshead global_variables;
00179 static ast_mutex_t globals_lock;
00180 
00181 /*! \brief Return mime type based on extension */
00182 static char *ftype2mtype(const char *ftype)
00183 {
00184    int x;
00185 
00186    if (ast_strlen_zero(ftype))
00187       return NULL;
00188 
00189    for (x = 0;x < ARRAY_LEN(mimetypes);x++) {
00190       if (!strcasecmp(ftype, mimetypes[x].ext))
00191          return mimetypes[x].mtype;
00192    }
00193    
00194    return NULL;
00195 }
00196 
00197 /* iface is the interface (e.g. eth0); address is the return value */
00198 static int lookup_iface(const char *iface, struct in_addr *address)
00199 {
00200    int mysock, res = 0;
00201    struct ifreq ifr;
00202    struct sockaddr_in *sin;
00203 
00204    memset(&ifr, 0, sizeof(ifr));
00205    ast_copy_string(ifr.ifr_name, iface, sizeof(ifr.ifr_name));
00206 
00207    mysock = socket(PF_INET, SOCK_DGRAM, IPPROTO_IP);
00208    if (mysock < 0) {
00209       ast_log(LOG_ERROR, "Failed to create socket: %s\n", strerror(errno));
00210       return -1;
00211    }
00212 
00213    res = ioctl(mysock, SIOCGIFADDR, &ifr);
00214 
00215    close(mysock);
00216 
00217    if (res < 0) {
00218       ast_log(LOG_WARNING, "Unable to get IP of %s: %s\n", iface, strerror(errno));
00219       memcpy(address, &__ourip, sizeof(__ourip));
00220       return -1;
00221    } else {
00222       sin = (struct sockaddr_in *)&ifr.ifr_addr;
00223       memcpy(address, &sin->sin_addr, sizeof(*address));
00224       return 0;
00225    }
00226 }
00227 
00228 static struct phone_profile *unref_profile(struct phone_profile *prof)
00229 {
00230    ao2_ref(prof, -1);
00231 
00232    return NULL;
00233 }
00234 
00235 /*! \brief Return a phone profile looked up by name */
00236 static struct phone_profile *find_profile(const char *name)
00237 {
00238    struct phone_profile tmp = {
00239       .name = name,
00240    };
00241 
00242    return ao2_find(profiles, &tmp, OBJ_POINTER);
00243 }
00244 
00245 static int profile_hash_fn(const void *obj, const int flags)
00246 {
00247    const struct phone_profile *profile = obj;
00248    
00249    return ast_str_hash(profile->name);
00250 }
00251 
00252 static int profile_cmp_fn(void *obj, void *arg, int flags)
00253 {
00254    const struct phone_profile *profile1 = obj, *profile2 = arg;
00255 
00256    return !strcasecmp(profile1->name, profile2->name) ? CMP_MATCH | CMP_STOP : 0;
00257 }
00258 
00259 static void delete_file(struct phoneprov_file *file)
00260 {
00261    ast_string_field_free_memory(file);
00262    free(file);
00263 }
00264 
00265 static void profile_destructor(void *obj)
00266 {
00267    struct phone_profile *profile = obj;
00268    struct phoneprov_file *file;
00269    struct ast_var_t *var;
00270 
00271    while ((file = AST_LIST_REMOVE_HEAD(&profile->static_files, entry)))
00272       delete_file(file);
00273 
00274    while ((file = AST_LIST_REMOVE_HEAD(&profile->dynamic_files, entry)))
00275       delete_file(file);
00276 
00277    while ((var = AST_LIST_REMOVE_HEAD(profile->headp, entries)))
00278       ast_var_delete(var);
00279 
00280    ast_free(profile->headp);
00281    ast_string_field_free_memory(profile);
00282 }
00283 
00284 static struct http_route *unref_route(struct http_route *route)
00285 {
00286    ao2_ref(route, -1);
00287 
00288    return NULL;
00289 }
00290 
00291 static int routes_hash_fn(const void *obj, const int flags)
00292 {
00293    const struct http_route *route = obj;
00294    
00295    return ast_str_hash(route->uri);
00296 }
00297 
00298 static int routes_cmp_fn(void *obj, void *arg, int flags)
00299 {
00300    const struct http_route *route1 = obj, *route2 = arg;
00301 
00302    return !strcmp(route1->uri, route2->uri) ? CMP_MATCH | CMP_STOP : 0;
00303 }
00304 
00305 static void route_destructor(void *obj)
00306 {
00307    struct http_route *route = obj;
00308 
00309    ast_string_field_free_memory(route);
00310 }
00311 
00312 /*! \brief Read a TEXT file into a string and return the length */
00313 static int load_file(const char *filename, char **ret)
00314 {
00315    int len = 0;
00316    FILE *f;
00317    
00318    if (!(f = fopen(filename, "r"))) {
00319       *ret = NULL;
00320       return -1;
00321    }
00322 
00323    fseek(f, 0, SEEK_END);
00324    len = ftell(f);
00325    fseek(f, 0, SEEK_SET);
00326    if (!(*ret = ast_malloc(len + 1)))
00327       return -2;
00328 
00329    if (len != fread(*ret, sizeof(char), len, f)) {
00330       free(*ret);
00331       *ret = NULL;
00332       return -3;
00333    }
00334 
00335    fclose(f);
00336 
00337    (*ret)[len] = '\0';
00338 
00339    return len;
00340 }
00341 
00342 /*! \brief Set all timezone-related variables based on a zone (i.e. America/New_York)
00343    \param headp pointer to list of user variables
00344    \param zone A time zone. NULL sets variables based on timezone of the machine
00345 */
00346 static void set_timezone_variables(struct varshead *headp, const char *zone)
00347 {
00348    time_t utc_time;
00349    int dstenable;
00350    time_t dststart;
00351    time_t dstend;
00352    struct ast_tm tm_info;
00353    int tzoffset;
00354    char buffer[21];
00355    struct ast_var_t *var;
00356    struct timeval when;
00357 
00358    time(&utc_time);
00359    ast_get_dst_info(&utc_time, &dstenable, &dststart, &dstend, &tzoffset, zone);
00360    snprintf(buffer, sizeof(buffer), "%d", tzoffset);
00361    var = ast_var_assign("TZOFFSET", buffer);
00362    if (var)
00363       AST_LIST_INSERT_TAIL(headp, var, entries); 
00364 
00365    if (!dstenable)
00366       return;
00367 
00368    if ((var = ast_var_assign("DST_ENABLE", "1")))
00369       AST_LIST_INSERT_TAIL(headp, var, entries);
00370 
00371    when.tv_sec = dststart; 
00372    ast_localtime(&when, &tm_info, zone);
00373 
00374    snprintf(buffer, sizeof(buffer), "%d", tm_info.tm_mon+1);
00375    if ((var = ast_var_assign("DST_START_MONTH", buffer)))
00376       AST_LIST_INSERT_TAIL(headp, var, entries);
00377 
00378    snprintf(buffer, sizeof(buffer), "%d", tm_info.tm_mday);
00379    if ((var = ast_var_assign("DST_START_MDAY", buffer)))
00380       AST_LIST_INSERT_TAIL(headp, var, entries);
00381 
00382    snprintf(buffer, sizeof(buffer), "%d", tm_info.tm_hour);
00383    if ((var = ast_var_assign("DST_START_HOUR", buffer)))
00384       AST_LIST_INSERT_TAIL(headp, var, entries);
00385 
00386    when.tv_sec = dstend;
00387    ast_localtime(&when, &tm_info, zone);
00388 
00389    snprintf(buffer, sizeof(buffer), "%d", tm_info.tm_mon + 1);
00390    if ((var = ast_var_assign("DST_END_MONTH", buffer)))
00391       AST_LIST_INSERT_TAIL(headp, var, entries);
00392 
00393    snprintf(buffer, sizeof(buffer), "%d", tm_info.tm_mday);
00394    if ((var = ast_var_assign("DST_END_MDAY", buffer)))
00395       AST_LIST_INSERT_TAIL(headp, var, entries);
00396 
00397    snprintf(buffer, sizeof(buffer), "%d", tm_info.tm_hour);
00398    if ((var = ast_var_assign("DST_END_HOUR", buffer)))
00399       AST_LIST_INSERT_TAIL(headp, var, entries);
00400 }
00401 
00402 /*! \brief Callback that is executed everytime an http request is received by this module */
00403 static struct ast_str *phoneprov_callback(struct ast_tcptls_session_instance *ser, const struct ast_http_uri *urih, const char *uri, enum ast_http_method method, struct ast_variable *vars, struct ast_variable *headers, int *status, char **title, int *contentlength)
00404 {
00405    struct http_route *route;
00406    struct http_route search_route = {
00407       .uri = uri,
00408    };
00409    struct ast_str *result = ast_str_create(512);
00410    char path[PATH_MAX];
00411    char *file = NULL;
00412    int len;
00413    int fd;
00414    char buf[256];
00415    struct timeval now = ast_tvnow();
00416    struct ast_tm tm;
00417 
00418    if (!(route = ao2_find(http_routes, &search_route, OBJ_POINTER))) {
00419       goto out404;
00420    }
00421 
00422    snprintf(path, sizeof(path), "%s/phoneprov/%s", ast_config_AST_DATA_DIR, route->file->template);
00423 
00424    if (!route->user) { /* Static file */
00425 
00426       fd = open(path, O_RDONLY);
00427       if (fd < 0) {
00428          goto out500;
00429       }
00430 
00431       len = lseek(fd, 0, SEEK_END);
00432       lseek(fd, 0, SEEK_SET);
00433       if (len < 0) {
00434          ast_log(LOG_WARNING, "Could not load file: %s (%d)\n", path, len);
00435          close(fd);
00436          goto out500;
00437       }
00438 
00439       ast_strftime(buf, sizeof(buf), "%a, %d %b %Y %H:%M:%S %Z", ast_localtime(&now, &tm, "GMT"));
00440       fprintf(ser->f, "HTTP/1.1 200 OK\r\n"
00441          "Server: Asterisk/%s\r\n"
00442          "Date: %s\r\n"
00443          "Connection: close\r\n"
00444          "Cache-Control: no-cache, no-store\r\n"
00445          "Content-Length: %d\r\n"
00446          "Content-Type: %s\r\n\r\n",
00447          ast_get_version(), buf, len, route->file->mime_type);
00448       
00449       while ((len = read(fd, buf, sizeof(buf))) > 0) {
00450          if (fwrite(buf, 1, len, ser->f) != len) {
00451             if (errno != EPIPE) {
00452                ast_log(LOG_WARNING, "fwrite() failed: %s\n", strerror(errno));
00453             } else {
00454                ast_debug(3, "Requester closed the connection while downloading '%s'\n", path);
00455             }
00456             break;
00457          }
00458       }
00459 
00460       close(fd);
00461       route = unref_route(route);
00462       return NULL;
00463    } else { /* Dynamic file */
00464       int bufsize;
00465       char *tmp;
00466 
00467       len = load_file(path, &file);
00468       if (len < 0) {
00469          ast_log(LOG_WARNING, "Could not load file: %s (%d)\n", path, len);
00470          if (file) {
00471             ast_free(file);
00472          }
00473 
00474          goto out500;
00475       }
00476 
00477       if (!file) {
00478          goto out500;
00479       }
00480 
00481       /* XXX This is a hack -- maybe sum length of all variables in route->user->headp and add that? */
00482       bufsize = len + VAR_BUF_SIZE;
00483       
00484       /* malloc() instead of alloca() here, just in case the file is bigger than
00485        * we have enough stack space for. */
00486       if (!(tmp = ast_calloc(1, bufsize))) {
00487          if (file) {
00488             ast_free(file);
00489          }
00490 
00491          goto out500;
00492       }
00493 
00494       /* Unless we are overridden by serveriface or serveraddr, we set the SERVER variable to
00495        * the IP address we are listening on that the phone contacted for this config file */
00496       if (ast_strlen_zero(global_server)) {
00497          struct sockaddr name;
00498          socklen_t namelen = sizeof(name);
00499          int res;
00500 
00501          if ((res = getsockname(ser->fd, &name, &namelen))) {
00502             ast_log(LOG_WARNING, "Could not get server IP, breakage likely.\n");
00503          } else {
00504             struct ast_var_t *var;
00505             struct extension *exten_iter;
00506 
00507             if ((var = ast_var_assign("SERVER", ast_inet_ntoa(((struct sockaddr_in *)&name)->sin_addr)))) {
00508                AST_LIST_TRAVERSE(&route->user->extensions, exten_iter, entry) {
00509                   AST_LIST_INSERT_TAIL(exten_iter->headp, var, entries);
00510                }
00511             }
00512          }
00513       }
00514 
00515       pbx_substitute_variables_varshead(AST_LIST_FIRST(&route->user->extensions)->headp, file, tmp, bufsize);
00516    
00517       if (file) {
00518          ast_free(file);
00519       }
00520 
00521       ast_str_append(&result, 0,
00522          "Content-Type: %s\r\n"
00523          "Content-length: %d\r\n"
00524          "\r\n"
00525          "%s", route->file->mime_type, (int) strlen(tmp), tmp);
00526 
00527       if (tmp) {
00528          ast_free(tmp);
00529       }
00530 
00531       route = unref_route(route);
00532 
00533       return result;
00534    }
00535 
00536 out404:
00537    *status = 404;
00538    *title = strdup("Not Found");
00539    *contentlength = 0;
00540    return ast_http_error(404, "Not Found", NULL, "Nothing to see here.  Move along.");
00541 
00542 out500:
00543    route = unref_route(route);
00544    *status = 500;
00545    *title = strdup("Internal Server Error");
00546    *contentlength = 0;
00547    return ast_http_error(500, "Internal Error", NULL, "An internal error has occured.");
00548 }
00549 
00550 /*! \brief Build a route structure and add it to the list of available http routes
00551    \param pp_file File to link to the route
00552    \param user User to link to the route (NULL means static route)
00553    \param uri URI of the route
00554 */
00555 static void build_route(struct phoneprov_file *pp_file, struct user *user, char *uri)
00556 {
00557    struct http_route *route;
00558    
00559    if (!(route = ao2_alloc(sizeof(*route), route_destructor))) {
00560       return;
00561    }
00562 
00563    if (ast_string_field_init(route, 32)) {
00564       ast_log(LOG_ERROR, "Couldn't create string fields for %s\n", pp_file->format);
00565       route = unref_route(route);
00566       return;
00567    }
00568 
00569    ast_string_field_set(route, uri, S_OR(uri, pp_file->format));
00570    route->user = user;
00571    route->file = pp_file;
00572 
00573    ao2_link(http_routes, route);
00574 
00575    route = unref_route(route);
00576 }
00577 
00578 /*! \brief Build a phone profile and add it to the list of phone profiles
00579    \param name the name of the profile
00580    \param v ast_variable from parsing phoneprov.conf
00581 */
00582 static void build_profile(const char *name, struct ast_variable *v)
00583 {
00584    struct phone_profile *profile;
00585    struct ast_var_t *var;
00586 
00587    if (!(profile = ao2_alloc(sizeof(*profile), profile_destructor))) {
00588       return;
00589    }
00590 
00591    if (ast_string_field_init(profile, 32)) {
00592       profile = unref_profile(profile);
00593       return;
00594    }
00595    
00596    if (!(profile->headp = ast_calloc(1, sizeof(*profile->headp)))) {
00597       profile = unref_profile(profile);
00598       return;
00599    }
00600 
00601    AST_LIST_HEAD_INIT_NOLOCK(&profile->static_files);
00602    AST_LIST_HEAD_INIT_NOLOCK(&profile->dynamic_files);
00603 
00604    ast_string_field_set(profile, name, name);
00605    for (; v; v = v->next) {
00606       if (!strcasecmp(v->name, "mime_type")) {
00607          ast_string_field_set(profile, default_mime_type, v->value);
00608       } else if (!strcasecmp(v->name, "setvar")) {
00609          struct ast_var_t *variable;
00610          char *value_copy = ast_strdupa(v->value);
00611 
00612          AST_DECLARE_APP_ARGS(args,
00613             AST_APP_ARG(varname);
00614             AST_APP_ARG(varval);
00615          );
00616          
00617          AST_NONSTANDARD_APP_ARGS(args, value_copy, '=');
00618          do {
00619             if (ast_strlen_zero(args.varname) || ast_strlen_zero(args.varval))
00620                break;
00621             args.varname = ast_strip(args.varname);
00622             args.varval = ast_strip(args.varval);
00623             if (ast_strlen_zero(args.varname) || ast_strlen_zero(args.varval))
00624                break;
00625             if ((variable = ast_var_assign(args.varname, args.varval)))
00626                AST_LIST_INSERT_TAIL(profile->headp, variable, entries);
00627          } while (0);
00628       } else if (!strcasecmp(v->name, "staticdir")) {
00629          ast_string_field_set(profile, staticdir, v->value);
00630       } else {
00631          struct phoneprov_file *pp_file;
00632          char *file_extension;
00633          char *value_copy = ast_strdupa(v->value); 
00634 
00635          AST_DECLARE_APP_ARGS(args,
00636             AST_APP_ARG(filename);
00637             AST_APP_ARG(mimetype);
00638          );
00639 
00640          if (!(pp_file = ast_calloc(1, sizeof(*pp_file)))) {
00641             profile = unref_profile(profile);
00642             return;
00643          }
00644          if (ast_string_field_init(pp_file, 32)) {
00645             ast_free(pp_file);
00646             profile = unref_profile(profile);
00647             return;
00648          }
00649 
00650          if ((file_extension = strrchr(pp_file->format, '.')))
00651             file_extension++;
00652 
00653          AST_STANDARD_APP_ARGS(args, value_copy);
00654 
00655          /* Mime type order of preference
00656           * 1) Specific mime-type defined for file in profile
00657           * 2) Mime determined by extension
00658           * 3) Default mime type specified in profile
00659           * 4) text/plain
00660           */
00661          ast_string_field_set(pp_file, mime_type, S_OR(args.mimetype, (S_OR(S_OR(ftype2mtype(file_extension), profile->default_mime_type), "text/plain"))));
00662 
00663          if (!strcasecmp(v->name, "static_file")) {
00664             ast_string_field_set(pp_file, format, args.filename);
00665             ast_string_field_build(pp_file, template, "%s%s", profile->staticdir, args.filename);
00666             AST_LIST_INSERT_TAIL(&profile->static_files, pp_file, entry);
00667             /* Add a route for the static files, as their filenames won't change per-user */
00668             build_route(pp_file, NULL, NULL);
00669          } else {
00670             ast_string_field_set(pp_file, format, v->name);
00671             ast_string_field_set(pp_file, template, args.filename);
00672             AST_LIST_INSERT_TAIL(&profile->dynamic_files, pp_file, entry);
00673          }
00674       }
00675    }
00676 
00677    /* Append the global variables to the variables list for this profile.
00678     * This is for convenience later, when we need to provide a single
00679     * variable list for use in substitution. */
00680    ast_mutex_lock(&globals_lock);
00681    AST_LIST_TRAVERSE(&global_variables, var, entries) {
00682       struct ast_var_t *new_var;
00683       if ((new_var = ast_var_assign(var->name, var->value))) {
00684          AST_LIST_INSERT_TAIL(profile->headp, new_var, entries);
00685       }
00686    }
00687    ast_mutex_unlock(&globals_lock);
00688 
00689    ao2_link(profiles, profile);
00690 
00691    profile = unref_profile(profile);
00692 }
00693 
00694 static struct extension *delete_extension(struct extension *exten)
00695 {
00696    struct ast_var_t *var;
00697    while ((var = AST_LIST_REMOVE_HEAD(exten->headp, entries))) {
00698       ast_var_delete(var);
00699    }
00700    ast_free(exten->headp);
00701    ast_string_field_free_memory(exten);
00702 
00703    ast_free(exten);
00704 
00705    return NULL;
00706 }
00707 
00708 static struct extension *build_extension(struct ast_config *cfg, const char *name)
00709 {
00710    struct extension *exten;
00711    struct ast_var_t *var;
00712    const char *tmp;
00713    int i;
00714 
00715    if (!(exten = ast_calloc(1, sizeof(*exten)))) {
00716       return NULL;
00717    }
00718    
00719    if (ast_string_field_init(exten, 32)) {
00720       ast_free(exten);
00721       exten = NULL;
00722       return NULL;
00723    }
00724    
00725    ast_string_field_set(exten, name, name);
00726    
00727    if (!(exten->headp = ast_calloc(1, sizeof(*exten->headp)))) {
00728       ast_free(exten);
00729       exten = NULL;
00730       return NULL;
00731    }
00732 
00733    for (i = 0; i < PP_VAR_LIST_LENGTH; i++) {
00734       tmp = ast_variable_retrieve(cfg, name, pp_variable_list[i].user_var);
00735 
00736       /* If we didn't get a USERNAME variable, set it to the user->name */
00737       if (i == PP_USERNAME && !tmp) {
00738          if ((var = ast_var_assign(pp_variable_list[PP_USERNAME].template_var, exten->name))) {
00739             AST_LIST_INSERT_TAIL(exten->headp, var, entries);
00740          }
00741          continue;
00742       } else if (i == PP_TIMEZONE) {
00743          /* perfectly ok if tmp is NULL, will set variables based on server's time zone */
00744          set_timezone_variables(exten->headp, tmp);
00745       } else if (i == PP_LINENUMBER) {
00746          if (!tmp) {
00747             tmp = "1";
00748          }
00749          exten->index = atoi(tmp);
00750       }
00751 
00752       if (tmp && (var = ast_var_assign(pp_variable_list[i].template_var, tmp))) {
00753          AST_LIST_INSERT_TAIL(exten->headp, var, entries);
00754       }
00755    }
00756 
00757    if (!ast_strlen_zero(global_server)) {
00758       if ((var = ast_var_assign("SERVER", global_server)))
00759          AST_LIST_INSERT_TAIL(exten->headp, var, entries);
00760    }
00761 
00762    if (!ast_strlen_zero(global_serverport)) {
00763       if ((var = ast_var_assign("SERVER_PORT", global_serverport)))
00764          AST_LIST_INSERT_TAIL(exten->headp, var, entries);
00765    }
00766 
00767    return exten;
00768 }
00769 
00770 static struct user *unref_user(struct user *user)
00771 {
00772    ao2_ref(user, -1);
00773 
00774    return NULL;
00775 }
00776 
00777 /*! \brief Return a user looked up by name */
00778 static struct user *find_user(const char *macaddress)
00779 {
00780    struct user tmp = {
00781       .macaddress = macaddress,
00782    };
00783 
00784    return ao2_find(users, &tmp, OBJ_POINTER);
00785 }
00786 
00787 static int users_hash_fn(const void *obj, const int flags)
00788 {
00789    const struct user *user = obj;
00790    
00791    return ast_str_hash(user->macaddress);
00792 }
00793 
00794 static int users_cmp_fn(void *obj, void *arg, int flags)
00795 {
00796    const struct user *user1 = obj, *user2 = arg;
00797 
00798    return !strcasecmp(user1->macaddress, user2->macaddress) ? CMP_MATCH | CMP_STOP : 0;
00799 }
00800 
00801 /*! \brief Free all memory associated with a user */
00802 static void user_destructor(void *obj)
00803 {
00804    struct user *user = obj;
00805    struct extension *exten;
00806 
00807    while ((exten = AST_LIST_REMOVE_HEAD(&user->extensions, entry))) {
00808       exten = delete_extension(exten);
00809    }
00810 
00811    if (user->profile) {
00812       user->profile = unref_profile(user->profile);
00813    }
00814    
00815    ast_string_field_free_memory(user);
00816 }
00817 
00818 /*! \brief Delete all users */
00819 static void delete_users(void)
00820 {
00821    struct ao2_iterator i;
00822    struct user *user;
00823 
00824    i = ao2_iterator_init(users, 0);
00825    while ((user = ao2_iterator_next(&i))) {
00826       ao2_unlink(users, user);
00827       user = unref_user(user);
00828    }
00829 }
00830 
00831 /*! \brief Build and return a user structure based on gathered config data */
00832 static struct user *build_user(const char *mac, struct phone_profile *profile)
00833 {
00834    struct user *user;
00835 
00836       
00837    if (!(user = ao2_alloc(sizeof(*user), user_destructor))) {
00838       profile = unref_profile(profile);
00839       return NULL;
00840    }
00841    
00842    if (ast_string_field_init(user, 32)) {
00843       profile = unref_profile(profile);
00844       user = unref_user(user);
00845       return NULL;
00846    }
00847 
00848    ast_string_field_set(user, macaddress, mac);
00849    user->profile = profile; /* already ref counted by find_profile */
00850 
00851    return user;
00852 }
00853 
00854 /*! \brief Add an extension to a user ordered by index/linenumber */
00855 static int add_user_extension(struct user *user, struct extension *exten)
00856 {
00857    struct ast_var_t *var;
00858 
00859    /* Append profile variables here, and substitute variables on profile
00860     * setvars, so that we can use user specific variables in them */
00861    AST_LIST_TRAVERSE(user->profile->headp, var, entries) {
00862       char expand_buf[VAR_BUF_SIZE] = {0,};
00863       struct ast_var_t *var2;
00864 
00865       pbx_substitute_variables_varshead(exten->headp, var->value, expand_buf, sizeof(expand_buf));
00866       if ((var2 = ast_var_assign(var->name, expand_buf)))
00867          AST_LIST_INSERT_TAIL(exten->headp, var2, entries);
00868    }
00869 
00870    if (AST_LIST_EMPTY(&user->extensions)) {
00871       AST_LIST_INSERT_HEAD(&user->extensions, exten, entry);
00872    } else {
00873       struct extension *exten_iter;
00874 
00875       AST_LIST_TRAVERSE_SAFE_BEGIN(&user->extensions, exten_iter, entry) {
00876          if (exten->index < exten_iter->index) {
00877             AST_LIST_INSERT_BEFORE_CURRENT(exten, entry);
00878          } else if (exten->index == exten_iter->index) {
00879             ast_log(LOG_WARNING, "Duplicate linenumber=%d for %s\n", exten->index, user->macaddress);
00880             return -1;
00881          } else if (!AST_LIST_NEXT(exten_iter, entry)) {
00882             AST_LIST_INSERT_TAIL(&user->extensions, exten, entry);
00883          }
00884       }
00885       AST_LIST_TRAVERSE_SAFE_END;
00886    }
00887 
00888    return 0;
00889 }
00890 
00891 /*! \brief Add an http route for dynamic files attached to the profile of the user */
00892 static int build_user_routes(struct user *user)
00893 {
00894    struct phoneprov_file *pp_file;
00895 
00896    AST_LIST_TRAVERSE(&user->profile->dynamic_files, pp_file, entry) {
00897       char expand_buf[VAR_BUF_SIZE] = { 0, };
00898 
00899       pbx_substitute_variables_varshead(AST_LIST_FIRST(&user->extensions)->headp, pp_file->format, expand_buf, sizeof(expand_buf));
00900       build_route(pp_file, user, expand_buf);
00901    }
00902 
00903    return 0;
00904 }
00905 
00906 /* \brief Parse config files and create appropriate structures */
00907 static int set_config(void)
00908 {
00909    struct ast_config *cfg, *phoneprov_cfg;
00910    char *cat;
00911    struct ast_variable *v;
00912    struct ast_flags config_flags = { 0 };
00913    struct ast_var_t *var;
00914 
00915    /* Try to grab the port from sip.conf.  If we don't get it here, we'll set it
00916     * to whatever is set in phoneprov.conf or default to 5060 */
00917    if ((cfg = ast_config_load("sip.conf", config_flags))) {
00918       ast_copy_string(global_serverport, S_OR(ast_variable_retrieve(cfg, "general", "bindport"), "5060"), sizeof(global_serverport));
00919       ast_config_destroy(cfg);
00920    }
00921 
00922    if (!(cfg = ast_config_load("users.conf", config_flags))) {
00923       ast_log(LOG_WARNING, "Unable to load users.conf\n");
00924       return 0;
00925    }
00926 
00927    /* Go ahead and load global variables from users.conf so we can append to profiles */
00928    for (v = ast_variable_browse(cfg, "general"); v; v = v->next) {
00929       if (!strcasecmp(v->name, "vmexten")) {
00930          if ((var = ast_var_assign("VOICEMAIL_EXTEN", v->value))) {
00931             ast_mutex_lock(&globals_lock);
00932             AST_LIST_INSERT_TAIL(&global_variables, var, entries);
00933             ast_mutex_unlock(&globals_lock);
00934          }
00935       }
00936       if (!strcasecmp(v->name, "localextenlength")) {
00937          if ((var = ast_var_assign("EXTENSION_LENGTH", v->value)))
00938             ast_mutex_lock(&globals_lock);
00939             AST_LIST_INSERT_TAIL(&global_variables, var, entries);
00940             ast_mutex_unlock(&globals_lock);
00941       }
00942    }
00943 
00944    if (!(phoneprov_cfg = ast_config_load("phoneprov.conf", config_flags))) {
00945       ast_log(LOG_ERROR, "Unable to load config phoneprov.conf\n");
00946       ast_config_destroy(cfg);
00947       return -1;
00948    }
00949 
00950    cat = NULL;
00951    while ((cat = ast_category_browse(phoneprov_cfg, cat))) {
00952       if (!strcasecmp(cat, "general")) {
00953          for (v = ast_variable_browse(phoneprov_cfg, cat); v; v = v->next) {
00954             if (!strcasecmp(v->name, "serveraddr"))
00955                ast_copy_string(global_server, v->value, sizeof(global_server));
00956             else if (!strcasecmp(v->name, "serveriface")) {
00957                struct in_addr addr;
00958                lookup_iface(v->value, &addr);
00959                ast_copy_string(global_server, ast_inet_ntoa(addr), sizeof(global_server));
00960             } else if (!strcasecmp(v->name, "serverport"))
00961                ast_copy_string(global_serverport, v->value, sizeof(global_serverport));
00962             else if (!strcasecmp(v->name, "default_profile"))
00963                ast_copy_string(global_default_profile, v->value, sizeof(global_default_profile));
00964          }
00965       } else 
00966          build_profile(cat, ast_variable_browse(phoneprov_cfg, cat));
00967    }
00968 
00969    ast_config_destroy(phoneprov_cfg);
00970 
00971    cat = NULL;
00972    while ((cat = ast_category_browse(cfg, cat))) {
00973       const char *tmp, *mac;
00974       struct user *user;
00975       struct phone_profile *profile;
00976       struct extension *exten;
00977 
00978       if (!strcasecmp(cat, "general")) {
00979          continue;
00980       }
00981            
00982       if (!strcasecmp(cat, "authentication"))
00983          continue;
00984 
00985       if (!((tmp = ast_variable_retrieve(cfg, cat, "autoprov")) && ast_true(tmp)))  
00986          continue;
00987 
00988       if (!(mac = ast_variable_retrieve(cfg, cat, "macaddress"))) {
00989          ast_log(LOG_WARNING, "autoprov set for %s, but no mac address - skipping.\n", cat);
00990          continue;
00991       }
00992 
00993       tmp = S_OR(ast_variable_retrieve(cfg, cat, "profile"), global_default_profile);
00994       if (ast_strlen_zero(tmp)) {
00995          ast_log(LOG_WARNING, "No profile for user [%s] with mac '%s' - skipping\n", cat, mac);
00996          continue;
00997       }
00998 
00999       if (!(user = find_user(mac))) {
01000          if (!(profile = find_profile(tmp))) {
01001             ast_log(LOG_WARNING, "Could not look up profile '%s' - skipping.\n", tmp);
01002             continue;
01003          }
01004 
01005          if (!(user = build_user(mac, profile))) {
01006             ast_log(LOG_WARNING, "Could not create user for '%s' - skipping\n", user->macaddress);
01007             continue;
01008          }
01009 
01010          if (!(exten = build_extension(cfg, cat))) {
01011             ast_log(LOG_WARNING, "Could not create extension for %s - skipping\n", user->macaddress);
01012             user = unref_user(user);
01013             continue;
01014          }
01015 
01016          if (add_user_extension(user, exten)) {
01017             ast_log(LOG_WARNING, "Could not add extension '%s' to user '%s'\n", exten->name, user->macaddress);
01018             user = unref_user(user);
01019             exten = delete_extension(exten);
01020             continue;
01021          }
01022 
01023          if (build_user_routes(user)) {
01024             ast_log(LOG_WARNING, "Could not create http routes for %s - skipping\n", user->macaddress);
01025             user = unref_user(user);
01026             continue;
01027          }
01028 
01029          ao2_link(users, user);
01030          user = unref_user(user);
01031       } else {
01032          if (!(exten = build_extension(cfg, cat))) {
01033             ast_log(LOG_WARNING, "Could not create extension for %s - skipping\n", user->macaddress);
01034             user = unref_user(user);
01035             continue;
01036          }
01037 
01038          if (add_user_extension(user, exten)) {
01039             ast_log(LOG_WARNING, "Could not add extension '%s' to user '%s'\n", exten->name, user->macaddress);
01040             user = unref_user(user);
01041             exten = delete_extension(exten);
01042             continue;
01043          }
01044 
01045          user = unref_user(user);
01046       }
01047    }
01048 
01049    ast_config_destroy(cfg);
01050 
01051    return 0;
01052 }
01053 
01054 /*! \brief Delete all http routes, freeing their memory */
01055 static void delete_routes(void)
01056 {
01057    struct ao2_iterator i;
01058    struct http_route *route;
01059    
01060    i = ao2_iterator_init(http_routes, 0);
01061    while ((route = ao2_iterator_next(&i))) {
01062       ao2_unlink(http_routes, route);
01063       route = unref_route(route);
01064    }
01065 }
01066 
01067 /*! \brief Delete all phone profiles, freeing their memory */
01068 static void delete_profiles(void)
01069 {
01070    struct ao2_iterator i;
01071    struct phone_profile *profile;
01072 
01073    i = ao2_iterator_init(profiles, 0);
01074    while ((profile = ao2_iterator_next(&i))) {
01075       ao2_unlink(profiles, profile);
01076       profile = unref_profile(profile);
01077    }
01078 }
01079 
01080 /*! \brief A dialplan function that can be used to print a string for each phoneprov user */
01081 static int pp_each_user_exec(struct ast_channel *chan, const char *cmd, char *data, char *buf, size_t len)
01082 {
01083    char *tmp, expand_buf[VAR_BUF_SIZE] = {0,};
01084    struct ao2_iterator i;
01085    struct user *user;
01086    AST_DECLARE_APP_ARGS(args,
01087       AST_APP_ARG(string);
01088       AST_APP_ARG(exclude_mac);
01089    );
01090    AST_STANDARD_APP_ARGS(args, data);
01091 
01092    /* Fix data by turning %{ into ${ */
01093    while ((tmp = strstr(args.string, "%{")))
01094       *tmp = '$';
01095 
01096    i = ao2_iterator_init(users, 0);
01097    while ((user = ao2_iterator_next(&i))) {
01098       if (!ast_strlen_zero(args.exclude_mac) && !strcasecmp(user->macaddress, args.exclude_mac)) {
01099          continue;
01100       }
01101       pbx_substitute_variables_varshead(AST_LIST_FIRST(&user->extensions)->headp, args.string, expand_buf, sizeof(expand_buf));
01102       ast_build_string(&buf, &len, "%s", expand_buf);
01103       user = unref_user(user);
01104    }
01105 
01106    return 0;
01107 }
01108 
01109 static struct ast_custom_function pp_each_user_function = {
01110    .name = "PP_EACH_USER",
01111    .synopsis = "Generate a string for each phoneprov user",
01112    .syntax = "PP_EACH_USER(<string>|<exclude_mac>)",
01113    .desc =
01114       "Pass in a string, with phoneprov variables you want substituted in the format of\n"
01115       "%{VARNAME}, and you will get the string rendered for each user in phoneprov\n"
01116       "excluding ones with MAC address <exclude_mac>. Probably not useful outside of\n"
01117       "res_phoneprov.\n"
01118       "\nExample: ${PP_EACH_USER(<item><fn>%{DISPLAY_NAME}</fn></item>|${MAC})",
01119    .read = pp_each_user_exec,
01120 };
01121 
01122 /*! \brief A dialplan function that can be used to output a template for each extension attached to a user */
01123 static int pp_each_extension_exec(struct ast_channel *chan, const char *cmd, char *data, char *buf, size_t len)
01124 {
01125    struct user *user;
01126    struct extension *exten;
01127    char path[PATH_MAX];
01128    char *file;
01129    int filelen;
01130    AST_DECLARE_APP_ARGS(args, 
01131       AST_APP_ARG(mac);
01132       AST_APP_ARG(template);
01133    );
01134    
01135    AST_STANDARD_APP_ARGS(args, data);
01136 
01137    if (ast_strlen_zero(args.mac) || ast_strlen_zero(args.template)) {
01138       ast_log(LOG_WARNING, "PP_EACH_EXTENSION requries both a macaddress and template filename.\n");
01139       return 0;
01140    }
01141 
01142    if (!(user = find_user(args.mac))) {
01143       ast_log(LOG_WARNING, "Could not find user with mac = '%s'\n", args.mac);
01144       return 0;
01145    }
01146 
01147    snprintf(path, sizeof(path), "%s/phoneprov/%s", ast_config_AST_DATA_DIR, args.template);
01148    filelen = load_file(path, &file);
01149    if (filelen < 0) {
01150       ast_log(LOG_WARNING, "Could not load file: %s (%d)\n", path, filelen);
01151       if (file) {
01152          ast_free(file);
01153       }
01154       return 0;
01155    }
01156 
01157    if (!file) {
01158       return 0;
01159    }
01160 
01161    AST_LIST_TRAVERSE(&user->extensions, exten, entry) {
01162       char expand_buf[VAR_BUF_SIZE] = {0,};
01163       pbx_substitute_variables_varshead(exten->headp, file, expand_buf, sizeof(expand_buf));
01164       ast_build_string(&buf, &len, "%s", expand_buf);
01165    }
01166 
01167    ast_free(file);
01168 
01169    user = unref_user(user);
01170 
01171    return 0;
01172 }
01173 
01174 static struct ast_custom_function pp_each_extension_function = {
01175    .name = "PP_EACH_EXTENSION",
01176    .synopsis = "Execute specified template for each extension",
01177    .syntax = "PP_EACH_EXTENSION(<mac>|<template>)",
01178    .desc =
01179       "Output the specified template for each extension associated with the specified\n"
01180       "MAC address.",
01181    .read = pp_each_extension_exec,
01182 };
01183 
01184 /*! \brief CLI command to list static and dynamic routes */
01185 static char *handle_show_routes(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
01186 {
01187 #define FORMAT "%-40.40s  %-30.30s\n"
01188    struct ao2_iterator i;
01189    struct http_route *route;
01190    
01191    switch(cmd) {
01192    case CLI_INIT:
01193       e->command = "phoneprov show routes";
01194       e->usage =
01195          "Usage: phoneprov show routes\n"
01196          "       Lists all registered phoneprov http routes.\n";
01197       return NULL;
01198    case CLI_GENERATE:
01199       return NULL;
01200    }
01201 
01202    /* This currently iterates over routes twice, but it is the only place I've needed
01203     * to really separate static an dynamic routes, so I've just left it this way. */
01204    ast_cli(a->fd, "Static routes\n\n");
01205    ast_cli(a->fd, FORMAT, "Relative URI", "Physical location");
01206    i = ao2_iterator_init(http_routes, 0);
01207    while ((route = ao2_iterator_next(&i))) {
01208       if (!route->user)
01209          ast_cli(a->fd, FORMAT, route->uri, route->file->template);
01210       route = unref_route(route);
01211    }
01212 
01213    ast_cli(a->fd, "\nDynamic routes\n\n");
01214    ast_cli(a->fd, FORMAT, "Relative URI", "Template");
01215 
01216    i = ao2_iterator_init(http_routes, 0);
01217    while ((route = ao2_iterator_next(&i))) {
01218       if (route->user)
01219          ast_cli(a->fd, FORMAT, route->uri, route->file->template);
01220       route = unref_route(route);
01221    }
01222 
01223    return CLI_SUCCESS;
01224 }
01225 
01226 static struct ast_cli_entry pp_cli[] = {
01227    AST_CLI_DEFINE(handle_show_routes, "Show registered phoneprov http routes"),
01228 };
01229 
01230 static struct ast_http_uri phoneprovuri = {
01231    .callback = phoneprov_callback,
01232    .description = "Asterisk HTTP Phone Provisioning Tool",
01233    .uri = "phoneprov",
01234    .has_subtree = 1,
01235    .supports_get = 1,
01236    .data = NULL,
01237    .key = __FILE__,
01238 };
01239 
01240 static int load_module(void)
01241 {
01242    profiles = ao2_container_alloc(MAX_PROFILE_BUCKETS, profile_hash_fn, profile_cmp_fn);
01243 
01244    http_routes = ao2_container_alloc(MAX_ROUTE_BUCKETS, routes_hash_fn, routes_cmp_fn);
01245 
01246    users = ao2_container_alloc(MAX_USER_BUCKETS, users_hash_fn, users_cmp_fn);
01247 
01248    AST_LIST_HEAD_INIT_NOLOCK(&global_variables);
01249    ast_mutex_init(&globals_lock);
01250    
01251    ast_custom_function_register(&pp_each_user_function);
01252    ast_custom_function_register(&pp_each_extension_function);
01253    ast_cli_register_multiple(pp_cli, ARRAY_LEN(pp_cli));
01254 
01255    set_config();
01256    ast_http_uri_link(&phoneprovuri); 
01257 
01258    return 0;
01259 }
01260 
01261 static int unload_module(void)
01262 {
01263    struct ast_var_t *var;
01264 
01265    ast_http_uri_unlink(&phoneprovuri);
01266    ast_custom_function_unregister(&pp_each_user_function);
01267    ast_custom_function_unregister(&pp_each_extension_function);
01268    ast_cli_unregister_multiple(pp_cli, ARRAY_LEN(pp_cli));
01269 
01270    delete_routes();
01271    delete_users();
01272    delete_profiles();
01273    ao2_ref(profiles, -1);
01274    ao2_ref(http_routes, -1);
01275    ao2_ref(users, -1);
01276 
01277    ast_mutex_lock(&globals_lock);
01278    while ((var = AST_LIST_REMOVE_HEAD(&global_variables, entries))) {
01279       ast_var_delete(var);
01280    }
01281    ast_mutex_unlock(&globals_lock);
01282 
01283    ast_mutex_destroy(&globals_lock);
01284 
01285    return 0;
01286 }
01287 
01288 static int reload(void) 
01289 {
01290    struct ast_var_t *var;
01291 
01292    delete_routes();
01293    delete_users();
01294    delete_profiles();
01295 
01296    ast_mutex_lock(&globals_lock);
01297    while ((var = AST_LIST_REMOVE_HEAD(&global_variables, entries))) {
01298       ast_var_delete(var);
01299    }
01300    ast_mutex_unlock(&globals_lock);
01301 
01302    set_config();
01303 
01304    return 0;
01305 }
01306 
01307 AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_GLOBAL_SYMBOLS, "HTTP Phone Provisioning",
01308       .load = load_module,
01309       .unload = unload_module,
01310       .reload = reload,
01311    );

Generated on Fri Jul 24 00:41:04 2009 for Asterisk - the Open Source PBX by  doxygen 1.4.7