X-Git-Url: https://gerrit.automotivelinux.org/gerrit/gitweb?a=blobdiff_plain;f=src%2Fafb-hook.c;h=83ffb5f86e287780b84cc8e47ffc0702074df231;hb=95ee37b3cdb38efc4e77d072d00c7fc46b203d24;hp=3c015dcfd1838918c41c8b923355b3354c002311;hpb=271bb6fc606fc5068a7b7a8f22b0052aca2fb900;p=src%2Fapp-framework-binder.git diff --git a/src/afb-hook.c b/src/afb-hook.c index 3c015dcf..83ffb5f8 100644 --- a/src/afb-hook.c +++ b/src/afb-hook.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2016, 2017 "IoT.bzh" + * Copyright (C) 2016, 2017, 2018 "IoT.bzh" * Author José Bollo * * Licensed under the Apache License, Version 2.0 (the "License"); @@ -28,8 +28,8 @@ #include -#include -#include +#include +#include #include "afb-context.h" #include "afb-hook.h" @@ -38,6 +38,7 @@ #include "afb-xreq.h" #include "afb-export.h" #include "afb-evt.h" +#include "afb-api.h" #include "verbose.h" /** @@ -46,10 +47,10 @@ struct afb_hook_xreq { struct afb_hook_xreq *next; /**< next hook */ unsigned refcount; /**< reference count */ + unsigned flags; /**< hook flags */ char *api; /**< api hooked or NULL for any */ char *verb; /**< verb hooked or NULL for any */ struct afb_session *session; /**< session hooked or NULL if any */ - unsigned flags; /**< hook flags */ struct afb_hook_xreq_itf *itf; /**< interface of hook */ void *closure; /**< closure for callbacks */ }; @@ -60,8 +61,8 @@ struct afb_hook_xreq { struct afb_hook_ditf { struct afb_hook_ditf *next; /**< next hook */ unsigned refcount; /**< reference count */ - char *api; /**< api hooked or NULL for any */ unsigned flags; /**< hook flags */ + char *api; /**< api hooked or NULL for any */ struct afb_hook_ditf_itf *itf; /**< interface of hook */ void *closure; /**< closure for callbacks */ }; @@ -72,8 +73,8 @@ struct afb_hook_ditf { struct afb_hook_svc { struct afb_hook_svc *next; /**< next hook */ unsigned refcount; /**< reference count */ - char *api; /**< api hooked or NULL for any */ unsigned flags; /**< hook flags */ + char *api; /**< api hooked or NULL for any */ struct afb_hook_svc_itf *itf; /**< interface of hook */ void *closure; /**< closure for callbacks */ }; @@ -84,12 +85,24 @@ struct afb_hook_svc { struct afb_hook_evt { struct afb_hook_evt *next; /**< next hook */ unsigned refcount; /**< reference count */ - char *pattern; /**< event pattern name hooked or NULL for any */ unsigned flags; /**< hook flags */ + char *pattern; /**< event pattern name hooked or NULL for any */ struct afb_hook_evt_itf *itf; /**< interface of hook */ void *closure; /**< closure for callbacks */ }; +/** + * Definition of a hook for session + */ +struct afb_hook_session { + struct afb_hook_session *next; /**< next hook */ + unsigned refcount; /**< reference count */ + unsigned flags; /**< hook flags */ + char *pattern; /**< event pattern name hooked or NULL for any */ + struct afb_hook_session_itf *itf; /**< interface of hook */ + void *closure; /**< closure for callbacks */ +}; + /** * Definition of a hook for global */ @@ -116,6 +129,9 @@ static struct afb_hook_svc *list_of_svc_hooks = NULL; /* list of hooks for evt */ static struct afb_hook_evt *list_of_evt_hooks = NULL; +/* list of hooks for session */ +static struct afb_hook_session *list_of_session_hooks = NULL; + /* list of hooks for global */ static struct afb_hook_global *list_of_global_hooks = NULL; @@ -128,7 +144,7 @@ static unsigned next_hookid = 0; static void init_hookid(struct afb_hookid *hookid) { hookid->id = __atomic_add_fetch(&next_hookid, 1, __ATOMIC_RELAXED); - clock_gettime(CLOCK_MONOTONIC, &hookid->time); + clock_gettime(CLOCK_REALTIME, &hookid->time); } /****************************************************************************** @@ -207,7 +223,7 @@ static void _hook_xreq_(const struct afb_xreq *xreq, const char *format, ...) { va_list ap; va_start(ap, format); - _hook_("xreq-%06d:%s/%s", format, ap, xreq->hookindex, xreq->api, xreq->verb); + _hook_("xreq-%06d:%s/%s", format, ap, xreq->hookindex, xreq->request.api, xreq->request.verb); va_end(ap); } @@ -281,14 +297,14 @@ static void hook_xreq_session_set_LOA_default_cb(void *closure, const struct afb _hook_xreq_(xreq, "session_set_LOA(%u) -> %d", level, result); } -static void hook_xreq_subscribe_default_cb(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq, struct afb_event event, int result) +static void hook_xreq_subscribe_default_cb(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq, struct afb_eventid *eventid, int result) { - _hook_xreq_(xreq, "subscribe(%s:%d) -> %d", afb_evt_event_fullname(event), afb_evt_event_id(event), result); + _hook_xreq_(xreq, "subscribe(%s:%d) -> %d", afb_evt_eventid_fullname(eventid), afb_evt_eventid_id(eventid), result); } -static void hook_xreq_unsubscribe_default_cb(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq, struct afb_event event, int result) +static void hook_xreq_unsubscribe_default_cb(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq, struct afb_eventid *eventid, int result) { - _hook_xreq_(xreq, "unsubscribe(%s:%d) -> %d", afb_evt_event_fullname(event), afb_evt_event_id(event), result); + _hook_xreq_(xreq, "unsubscribe(%s:%d) -> %d", afb_evt_eventid_fullname(eventid), afb_evt_eventid_id(eventid), result); } static void hook_xreq_subcall_default_cb(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq, const char *api, const char *verb, struct json_object *args) @@ -364,6 +380,11 @@ static void hook_xreq_context_make_default_cb(void *closure, const struct afb_ho _hook_xreq_(xreq, "context_make(replace=%s, %p, %p, %p) -> %p", replace?"yes":"no", create_value, free_value, create_closure, result); } +static void hook_xreq_get_uid_default_cb(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq, int result) +{ + _hook_xreq_(xreq, "get_uid() -> %d", result); +} + static struct afb_hook_xreq_itf hook_xreq_default_itf = { .hook_xreq_begin = hook_xreq_begin_default_cb, .hook_xreq_end = hook_xreq_end_default_cb, @@ -390,7 +411,8 @@ static struct afb_hook_xreq_itf hook_xreq_default_itf = { .hook_xreq_subcall_req_result = hook_xreq_subcall_req_result_default_cb, .hook_xreq_has_permission = hook_xreq_has_permission_default_cb, .hook_xreq_get_application_id = hook_xreq_get_application_id_default_cb, - .hook_xreq_context_make = hook_xreq_context_make_default_cb + .hook_xreq_context_make = hook_xreq_context_make_default_cb, + .hook_xreq_get_uid = hook_xreq_get_uid_default_cb, }; /****************************************************************************** @@ -407,8 +429,8 @@ static struct afb_hook_xreq_itf hook_xreq_default_itf = { if (hook->itf->hook_xreq_##what \ && (hook->flags & afb_hook_flag_req_##what) != 0 \ && (!hook->session || hook->session == xreq->context.session) \ - && (!hook->api || !strcasecmp(hook->api, xreq->api)) \ - && (!hook->verb || !strcasecmp(hook->verb, xreq->verb))) { \ + && (!hook->api || !strcasecmp(hook->api, xreq->request.api)) \ + && (!hook->verb || !strcasecmp(hook->verb, xreq->request.verb))) { \ hook->itf->hook_xreq_##what(hook->closure, &hookid, __VA_ARGS__); \ } \ hook = hook->next; \ @@ -480,15 +502,15 @@ int afb_hook_xreq_session_set_LOA(const struct afb_xreq *xreq, unsigned level, i return result; } -int afb_hook_xreq_subscribe(const struct afb_xreq *xreq, struct afb_event event, int result) +int afb_hook_xreq_subscribe(const struct afb_xreq *xreq, struct afb_eventid *eventid, int result) { - _HOOK_XREQ_(subscribe, xreq, event, result); + _HOOK_XREQ_(subscribe, xreq, eventid, result); return result; } -int afb_hook_xreq_unsubscribe(const struct afb_xreq *xreq, struct afb_event event, int result) +int afb_hook_xreq_unsubscribe(const struct afb_xreq *xreq, struct afb_eventid *eventid, int result) { - _HOOK_XREQ_(unsubscribe, xreq, event, result); + _HOOK_XREQ_(unsubscribe, xreq, eventid, result); return result; } @@ -556,6 +578,12 @@ void *afb_hook_xreq_context_make(const struct afb_xreq *xreq, int replace, void return result; } +int afb_hook_xreq_get_uid(const struct afb_xreq *xreq, int result) +{ + _HOOK_XREQ_(get_uid, xreq, result); + return result; +} + /****************************************************************************** * section: hooking xreqs *****************************************************************************/ @@ -570,19 +598,21 @@ void afb_hook_init_xreq(struct afb_xreq *xreq) /* scan hook list to get the expected flags */ flags = 0; - pthread_rwlock_rdlock(&rwlock); - hook = list_of_xreq_hooks; - while (hook) { - f = hook->flags & afb_hook_flags_req_all; - add = f != 0 - && (!hook->session || hook->session == xreq->context.session) - && (!hook->api || !strcasecmp(hook->api, xreq->api)) - && (!hook->verb || !strcasecmp(hook->verb, xreq->verb)); - if (add) - flags |= f; - hook = hook->next; + if (afb_api_is_hookable(xreq->request.api)) { + pthread_rwlock_rdlock(&rwlock); + hook = list_of_xreq_hooks; + while (hook) { + f = hook->flags & afb_hook_flags_req_all; + add = f != 0 + && (!hook->session || hook->session == xreq->context.session) + && (!hook->api || !strcasecmp(hook->api, xreq->request.api)) + && (!hook->verb || !strcasecmp(hook->verb, xreq->request.verb)); + if (add) + flags |= f; + hook = hook->next; + } + pthread_rwlock_unlock(&rwlock); } - pthread_rwlock_unlock(&rwlock); /* store the hooking data */ xreq->hookflags = flags; @@ -724,9 +754,9 @@ static void hook_ditf_vverbose_cb(void *closure, const struct afb_hookid *hookid } } -static void hook_ditf_event_make_cb(void *closure, const struct afb_hookid *hookid, const struct afb_export *export, const char *name, struct afb_event result) +static void hook_ditf_event_make_cb(void *closure, const struct afb_hookid *hookid, const struct afb_export *export, const char *name, struct afb_eventid *result) { - _hook_ditf_(export, "event_make(%s) -> %s:%d", name, afb_evt_event_fullname(result), afb_evt_event_id(result)); + _hook_ditf_(export, "event_make(%s) -> %s:%d", name, afb_evt_eventid_fullname(result), afb_evt_eventid_id(result)); } static void hook_ditf_rootdir_get_fd_cb(void *closure, const struct afb_hookid *hookid, const struct afb_export *export, int result) @@ -852,7 +882,7 @@ void afb_hook_ditf_vverbose(const struct afb_export *export, int level, const ch _HOOK_DITF_(vverbose, export, level, file, line, function, fmt, args); } -struct afb_event afb_hook_ditf_event_make(const struct afb_export *export, const char *name, struct afb_event result) +struct afb_eventid *afb_hook_ditf_event_make(const struct afb_export *export, const char *name, struct afb_eventid *result) { _HOOK_DITF_(event_make, export, name, result); return result; @@ -907,15 +937,17 @@ int afb_hook_flags_ditf(const char *api) int flags; struct afb_hook_ditf *hook; - pthread_rwlock_rdlock(&rwlock); flags = 0; - hook = list_of_ditf_hooks; - while (hook) { - if (!api || !hook->api || !strcasecmp(hook->api, api)) - flags |= hook->flags; - hook = hook->next; + if (!api || afb_api_is_hookable(api)) { + pthread_rwlock_rdlock(&rwlock); + hook = list_of_ditf_hooks; + while (hook) { + if (!api || !hook->api || !strcasecmp(hook->api, api)) + flags |= hook->flags; + hook = hook->next; + } + pthread_rwlock_unlock(&rwlock); } - pthread_rwlock_unlock(&rwlock); return flags; } @@ -1119,15 +1151,17 @@ int afb_hook_flags_svc(const char *api) int flags; struct afb_hook_svc *hook; - pthread_rwlock_rdlock(&rwlock); flags = 0; - hook = list_of_svc_hooks; - while (hook) { - if (!api || !hook->api || !strcasecmp(hook->api, api)) - flags |= hook->flags; - hook = hook->next; + if (!api || afb_api_is_hookable(api)) { + pthread_rwlock_rdlock(&rwlock); + hook = list_of_svc_hooks; + while (hook) { + if (!api || !hook->api || !strcasecmp(hook->api, api)) + flags |= hook->flags; + hook = hook->next; + } + pthread_rwlock_unlock(&rwlock); } - pthread_rwlock_unlock(&rwlock); return flags; } @@ -1331,15 +1365,17 @@ int afb_hook_flags_evt(const char *name) int flags; struct afb_hook_evt *hook; - pthread_rwlock_rdlock(&rwlock); flags = 0; - hook = list_of_evt_hooks; - while (hook) { - if (!name || !hook->pattern || !fnmatch(hook->pattern, name, FNM_CASEFOLD)) - flags |= hook->flags; - hook = hook->next; + if (!name || afb_api_is_hookable(name)) { + pthread_rwlock_rdlock(&rwlock); + hook = list_of_evt_hooks; + while (hook) { + if (!name || !hook->pattern || !fnmatch(hook->pattern, name, FNM_CASEFOLD)) + flags |= hook->flags; + hook = hook->next; + } + pthread_rwlock_unlock(&rwlock); } - pthread_rwlock_unlock(&rwlock); return flags; } @@ -1408,6 +1444,178 @@ void afb_hook_unref_evt(struct afb_hook_evt *hook) } } +/****************************************************************************** + * section: default callbacks for sessions (session) + *****************************************************************************/ + +static void _hook_session_(struct afb_session *session, const char *format, ...) +{ + va_list ap; + va_start(ap, format); + _hook_("session-%s", format, ap, afb_session_uuid(session)); + va_end(ap); +} + +static void hook_session_create_default_cb(void *closure, const struct afb_hookid *hookid, struct afb_session *session) +{ + _hook_session_(session, "create -> token=%s", afb_session_token(session)); +} + +static void hook_session_close_default_cb(void *closure, const struct afb_hookid *hookid, struct afb_session *session) +{ + _hook_session_(session, "close"); +} + +static void hook_session_destroy_default_cb(void *closure, const struct afb_hookid *hookid, struct afb_session *session) +{ + _hook_session_(session, "destroy"); +} + +static void hook_session_renew_default_cb(void *closure, const struct afb_hookid *hookid, struct afb_session *session) +{ + _hook_session_(session, "renew -> token=%s", afb_session_token(session)); +} + +static void hook_session_addref_default_cb(void *closure, const struct afb_hookid *hookid, struct afb_session *session) +{ + _hook_session_(session, "addref"); +} + +static void hook_session_unref_default_cb(void *closure, const struct afb_hookid *hookid, struct afb_session *session) +{ + _hook_session_(session, "unref"); +} + +static struct afb_hook_session_itf hook_session_default_itf = { + .hook_session_create = hook_session_create_default_cb, + .hook_session_close = hook_session_close_default_cb, + .hook_session_destroy = hook_session_destroy_default_cb, + .hook_session_renew = hook_session_renew_default_cb, + .hook_session_addref = hook_session_addref_default_cb, + .hook_session_unref = hook_session_unref_default_cb +}; + +/****************************************************************************** + * section: hooks for tracing sessions (session) + *****************************************************************************/ + +#define _HOOK_SESSION_(what,...) \ + struct afb_hook_session *hook; \ + struct afb_hookid hookid; \ + const char *sessid = 0; \ + pthread_rwlock_rdlock(&rwlock); \ + init_hookid(&hookid); \ + hook = list_of_session_hooks; \ + while (hook) { \ + if (hook->itf->hook_session_##what \ + && (hook->flags & afb_hook_flag_session_##what) != 0 \ + && (!hook->pattern || !fnmatch(hook->pattern, (sessid?:(sessid=afb_session_uuid(session))), FNM_CASEFOLD))) { \ + hook->itf->hook_session_##what(hook->closure, &hookid, __VA_ARGS__); \ + } \ + hook = hook->next; \ + } \ + pthread_rwlock_unlock(&rwlock); + +void afb_hook_session_create(struct afb_session *session) +{ + _HOOK_SESSION_(create, session); +} + +void afb_hook_session_close(struct afb_session *session) +{ + _HOOK_SESSION_(close, session); +} + +void afb_hook_session_destroy(struct afb_session *session) +{ + _HOOK_SESSION_(destroy, session); +} + +void afb_hook_session_renew(struct afb_session *session) +{ + _HOOK_SESSION_(renew, session); +} + +void afb_hook_session_addref(struct afb_session *session) +{ + _HOOK_SESSION_(addref, session); +} + +void afb_hook_session_unref(struct afb_session *session) +{ + _HOOK_SESSION_(unref, session); +} + + +/****************************************************************************** + * section: hooking sessions (session) + *****************************************************************************/ + +struct afb_hook_session *afb_hook_create_session(const char *pattern, int flags, struct afb_hook_session_itf *itf, void *closure) +{ + struct afb_hook_session *hook; + + /* alloc the result */ + hook = calloc(1, sizeof *hook); + if (hook == NULL) + return NULL; + + /* get a copy of the names */ + hook->pattern = pattern ? strdup(pattern) : NULL; + if (pattern && !hook->pattern) { + free(hook); + return NULL; + } + + /* initialise the rest */ + hook->refcount = 1; + hook->flags = flags; + hook->itf = itf ? itf : &hook_session_default_itf; + hook->closure = closure; + + /* record the hook */ + pthread_rwlock_wrlock(&rwlock); + hook->next = list_of_session_hooks; + list_of_session_hooks = hook; + pthread_rwlock_unlock(&rwlock); + + /* returns it */ + return hook; +} + +struct afb_hook_session *afb_hook_addref_session(struct afb_hook_session *hook) +{ + pthread_rwlock_wrlock(&rwlock); + hook->refcount++; + pthread_rwlock_unlock(&rwlock); + return hook; +} + +void afb_hook_unref_session(struct afb_hook_session *hook) +{ + struct afb_hook_session **prv; + + if (hook) { + pthread_rwlock_wrlock(&rwlock); + if (--hook->refcount) + hook = NULL; + else { + /* unlink */ + prv = &list_of_session_hooks; + while (*prv && *prv != hook) + prv = &(*prv)->next; + if(*prv) + *prv = hook->next; + } + pthread_rwlock_unlock(&rwlock); + if (hook) { + /* free */ + free(hook->pattern); + free(hook); + } + } +} + /****************************************************************************** * section: default callbacks for globals (global) *****************************************************************************/