X-Git-Url: https://gerrit.automotivelinux.org/gerrit/gitweb?a=blobdiff_plain;f=src%2Fafb-api-so-v2.c;h=59a319521fb0dd46583d35bfcbc24a379d39e258;hb=65353dce81a629e042800bb7b86fcd869a76727e;hp=75e59d66aa0e7c072707098866e48532684aae70;hpb=41618d081d650f9cc105034bfa37d3b861663db7;p=src%2Fapp-framework-binder.git diff --git a/src/afb-api-so-v2.c b/src/afb-api-so-v2.c index 75e59d66..59a31952 100644 --- a/src/afb-api-so-v2.c +++ b/src/afb-api-so-v2.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2016, 2017 "IoT.bzh" + * Copyright (C) 2015-2020 "IoT.bzh" * Author José Bollo * * Licensed under the Apache License, Version 2.0 (the "License"); @@ -15,256 +15,212 @@ * limitations under the License. */ +#if WITH_LEGACY_BINDING_V2 && WITH_DYNAMIC_BINDING + #define _GNU_SOURCE -#define NO_BINDING_VERBOSE_MACRO +#include #include #include #include +#include +#include -#include +#include +#include -#include "afb-apis.h" -#include "afb-svc.h" +#include "afb-api.h" +#include "afb-api-so-v2.h" +#include "afb-apiset.h" +#include "afb-auth.h" +#include "afb-export.h" #include "afb-evt.h" -#include "afb-common.h" #include "afb-context.h" #include "afb-api-so.h" #include "afb-xreq.h" +#include "sig-monitor.h" #include "verbose.h" /* * names of symbols */ static const char afb_api_so_v2_descriptor[] = "afbBindingV2"; +static const char afb_api_so_v2_data[] = "afbBindingV2data"; -/* - * Description of a binding - */ -struct api_so_v2 { - struct afb_binding_v2 *binding; /* descriptor */ - size_t apilength; /* length of the API name */ - void *handle; /* context of dlopen */ - struct afb_svc *service; /* handler for service started */ - struct afb_binding_interface interface; /* interface for the binding */ -}; - -static struct afb_event afb_api_so_event_make_cb(void *closure, const char *name); -static int afb_api_so_event_broadcast_cb(void *closure, const char *name, struct json_object *object); -static void afb_api_so_vverbose_cb(void *closure, int level, const char *file, int line, const char *fmt, va_list args); -static int afb_api_so_rootdir_get_fd(void *closure); -static int afb_api_so_rootdir_open_locale(void *closure, const char *filename, int flags, const char *locale); - -static const struct afb_daemon_itf daemon_itf = { - .event_broadcast = afb_api_so_event_broadcast_cb, - .get_event_loop = afb_common_get_event_loop, - .get_user_bus = afb_common_get_user_bus, - .get_system_bus = afb_common_get_system_bus, - .vverbose = afb_api_so_vverbose_cb, - .event_make = afb_api_so_event_make_cb, - .rootdir_get_fd = afb_api_so_rootdir_get_fd, - .rootdir_open_locale = afb_api_so_rootdir_open_locale +struct preinit +{ + int return_code; + const struct afb_binding_v2 *binding; }; -static struct afb_event afb_api_so_event_make_cb(void *closure, const char *name) +static const struct afb_verb_v2 *search(const struct afb_binding_v2 *binding, const char *name) { - size_t length; - char *event; - struct api_so_v2 *desc = closure; - - /* makes the event name */ - assert(desc->binding != NULL); - length = strlen(name); - event = alloca(length + 2 + desc->apilength); - memcpy(event, desc->binding->api, desc->apilength); - event[desc->apilength] = '/'; - memcpy(event + desc->apilength + 1, name, length + 1); - - /* crate the event */ - return afb_evt_create_event(event); -} + const struct afb_verb_v2 *verb; -static int afb_api_so_event_broadcast_cb(void *closure, const char *name, struct json_object *object) -{ - size_t length; - char *event; - struct api_so_v2 *desc = closure; - - /* makes the event name */ - assert(desc->binding != NULL); - length = strlen(name); - event = alloca(length + 2 + desc->apilength); - memcpy(event, desc->binding->api, desc->apilength); - event[desc->apilength] = '/'; - memcpy(event + desc->apilength + 1, name, length + 1); - - return afb_evt_broadcast(event, object); + verb = binding->verbs; + while (verb->verb && strcasecmp(verb->verb, name)) + verb++; + return verb->verb ? verb : NULL; + return NULL; } -static void afb_api_so_vverbose_cb(void *closure, int level, const char *file, int line, const char *fmt, va_list args) +void afb_api_so_v2_process_call(const struct afb_binding_v2 *binding, struct afb_xreq *xreq) { - char *p; - struct api_so_v2 *desc = closure; - - if (vasprintf(&p, fmt, args) < 0) - vverbose(level, file, line, fmt, args); - else { - verbose(level, file, line, "%s {binding %s}", p, desc->binding->api); - free(p); - } -} + const struct afb_verb_v2 *verb; -static int afb_api_so_rootdir_get_fd(void *closure) -{ - return afb_common_rootdir_get_fd(); + verb = search(binding, xreq->request.called_verb); + afb_xreq_call_verb_v2(xreq, verb); } -static int afb_api_so_rootdir_open_locale(void *closure, const char *filename, int flags, const char *locale) +struct json_object *afb_api_so_v2_make_description_openAPIv3(const struct afb_binding_v2 *binding, const char *apiname) { - return afb_common_rootdir_open_locale(filename, flags, locale); -} + char buffer[256]; + const struct afb_verb_v2 *verb; + struct json_object *r, *f, *a, *i, *p, *g; + enum json_tokener_error jerr; -static const struct afb_verb_v2 *search(struct api_so_v2 *desc, const char *verb) -{ - const struct afb_verb_v2 *result; + if (binding->specification) { + r = json_tokener_parse_verbose(binding->specification, &jerr); + if (jerr == json_tokener_success) + return r; + } - result = desc->binding->verbs; - while (result->verb && strcasecmp(result->verb, verb)) - result++; - return result->verb ? result : NULL; + r = json_object_new_object(); + json_object_object_add(r, "openapi", json_object_new_string("3.0.0")); + + i = json_object_new_object(); + json_object_object_add(r, "info", i); + json_object_object_add(i, "title", json_object_new_string(apiname)); + json_object_object_add(i, "version", json_object_new_string("0.0.0")); + json_object_object_add(i, "description", json_object_new_string(binding->info ?: apiname)); + + p = json_object_new_object(); + json_object_object_add(r, "paths", p); + verb = binding->verbs; + while (verb->verb) { + buffer[0] = '/'; + strncpy(buffer + 1, verb->verb, sizeof buffer - 1); + buffer[sizeof buffer - 1] = 0; + f = json_object_new_object(); + json_object_object_add(p, buffer, f); + g = json_object_new_object(); + json_object_object_add(f, "get", g); + + a = afb_auth_json_x2(verb->auth, verb->session); + if (a) + json_object_object_add(g, "x-permissions", a); + + a = json_object_new_object(); + json_object_object_add(g, "responses", a); + f = json_object_new_object(); + json_object_object_add(a, "200", f); + json_object_object_add(f, "description", json_object_new_string(verb->info?:verb->verb)); + verb++; + } + return r; } -static void call_cb(void *closure, struct afb_xreq *xreq) +static void do_preinit(int sig, void *closure) { - struct api_so_v2 *desc = closure; - const struct afb_verb_v2 *verb; + struct preinit *preinit = closure; - verb = search(desc, xreq->verb); - if (!verb) - afb_xreq_fail_f(xreq, "unknown-verb", "verb %s unknown within api %s", xreq->verb, desc->binding->api); + if (!sig) + preinit->return_code = preinit->binding->preinit(); else { - xreq->sessionflags = (int)verb->session; - xreq->group = desc; - xreq->callback = verb->callback; - afb_xreq_call(xreq); + errno = EINTR; + preinit->return_code = -1; } -} +}; -static int service_start_cb(void *closure, int share_session, int onneed) +int afb_api_so_v2_add_binding( + const struct afb_binding_v2 *binding, + void *handle, + struct afb_apiset *declare_set, + struct afb_apiset * call_set, + struct afb_binding_data_v2 *data, + const char *path) { - int (*start)(const struct afb_binding_interface *interface, struct afb_service service); - void (*onevent)(const char *event, struct json_object *object); - - struct api_so_v2 *desc = closure; + int rc; + struct afb_export *export; + struct preinit preinit; - /* check state */ - if (desc->service != NULL) { - /* not an error when onneed */ - if (onneed != 0) - return 0; + /* basic checks */ + assert(binding); + assert(binding->api); + assert(binding->verbs); + assert(data); - /* already started: it is an error */ - ERROR("Service %s already started", desc->binding->api); - return -1; + /* allocates the description */ + export = afb_export_create_v2(declare_set, call_set, binding->api, binding, data, binding->init, binding->onevent, path); + if (!export) { + ERROR("out of memory"); + goto error; } - /* get the initialisation */ - start = desc->binding->start; - if (start == NULL) { - /* not an error when onneed */ - if (onneed != 0) - return 0; - - /* no initialisation method */ - ERROR("Binding %s is not a service", desc->binding->api); - return -1; + /* records the binding */ + if (afb_export_declare(export, binding->noconcurrency) < 0) { + ERROR("binding %s can't be registered to set %s...", afb_export_apiname(export), afb_apiset_name(declare_set)); + goto error; } - - /* get the event handler if any */ - onevent = desc->binding->onevent; - desc->service = afb_svc_create_v2(share_session, onevent, start, &desc->interface); - if (desc->service == NULL) { - /* starting error */ - ERROR("Starting service %s failed", desc->binding->api); - return -1; + /* init the binding */ + if (binding->preinit) { + INFO("binding %s calling preinit function", binding->api); + preinit.binding = binding; + sig_monitor(0, do_preinit, &preinit); + rc = preinit.return_code; + if (rc < 0) { + ERROR("binding %s preinit function failed...", afb_export_apiname(export)); + afb_export_undeclare(export); + goto error; + } } - return 0; + INFO("binding %s added to set %s", afb_export_apiname(export), afb_apiset_name(declare_set)); + return 1; + +error: + afb_export_unref(export); + + return -1; } -int afb_api_so_v2_add(const char *path, void *handle) +int afb_api_so_v2_add(const char *path, void *handle, struct afb_apiset *declare_set, struct afb_apiset * call_set) { - int rc; - struct api_so_v2 *desc; - struct afb_binding_v2 *binding; + const struct afb_binding_v2 *binding; + struct afb_binding_data_v2 *data; /* retrieves the register function */ binding = dlsym(handle, afb_api_so_v2_descriptor); - if (!binding) + data = dlsym(handle, afb_api_so_v2_data); + if (!binding && !data) return 0; INFO("binding [%s] looks like an AFB binding V2", path); /* basic checks */ + if (!binding || !data) { + ERROR("binding [%s] incomplete symbol set: %s is missing", + path, binding ? afb_api_so_v2_data : afb_api_so_v2_descriptor); + goto error; + } if (binding->api == NULL || *binding->api == 0) { ERROR("binding [%s] bad api name...", path); goto error; } - if (!afb_apis_is_valid_api_name(binding->api)) { + if (!afb_api_is_valid_name(binding->api)) { ERROR("binding [%s] invalid api name...", path); goto error; } - if (binding->specification == NULL || *binding->specification == 0) { - ERROR("binding [%s] bad specification...", path); - goto error; - } + if (binding->verbs == NULL) { ERROR("binding [%s] no verbs...", path); goto error; } - /* allocates the description */ - desc = calloc(1, sizeof *desc); - if (desc == NULL) { - ERROR("out of memory"); - goto error; - } - desc->binding = binding; - desc->handle = handle; - - /* init the interface */ - desc->interface.verbosity = verbosity; - desc->interface.mode = AFB_MODE_LOCAL; - desc->interface.daemon.itf = &daemon_itf; - desc->interface.daemon.closure = desc; + return afb_api_so_v2_add_binding(binding, handle, declare_set, call_set, data, path); - /* for log purpose, a fake binding is needed here */ - - /* init the binding */ - if (binding->init) { - NOTICE("binding %s [%s] calling init function", binding->api, path); - rc = binding->init(&desc->interface); - if (rc < 0) { - ERROR("binding %s [%s] initialisation function failed...", binding->api, path); - goto error2; - } - } - - /* records the binding */ - desc->apilength = strlen(binding->api); - if (afb_apis_add(binding->api, (struct afb_api){ - .closure = desc, - .call = call_cb, - .service_start = service_start_cb }) < 0) { - ERROR("binding [%s] can't be registered...", path); - goto error2; - } - NOTICE("binding %s loaded with API prefix %s", path, binding->api); - return 1; - -error2: - free(desc); -error: + error: return -1; } +#endif