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f34face988
The wpas-helpers provide easy _asynchronous_ access to wpa_supplicant control interfaces. Compared to the old wpa_ctrl_* stuff it's no longer synchronous. Thus, it doesn't block our daemon while wpa_supplicant runs some heavy work again.. Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
163 lines
5 KiB
C
163 lines
5 KiB
C
/*
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* MiracleCast - Wifi-Display/Miracast Implementation
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*
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* Copyright (c) 2013-2014 David Herrmann <dh.herrmann@gmail.com>
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*
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* MiracleCast is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 2.1 of the License, or
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* (at your option) any later version.
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*
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* MiracleCast is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with MiracleCast; If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef MIRACLE_WPAS_H
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#define MIRACLE_WPAS_H
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#include <inttypes.h>
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#include <stdarg.h>
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#include <stdbool.h>
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#include <stdlib.h>
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#include <systemd/sd-event.h>
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/* types */
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struct wpas;
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struct wpas_message;
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typedef int (*wpas_callback_fn) (struct wpas *w,
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struct wpas_message *m,
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void *data);
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enum {
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WPAS_MESSAGE_UNKNOWN,
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WPAS_MESSAGE_EVENT,
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WPAS_MESSAGE_REQUEST,
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WPAS_MESSAGE_REPLY,
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WPAS_TYPE_CNT,
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};
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enum {
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WPAS_LEVEL_UNKNOWN,
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WPAS_LEVEL_MSGDUMP,
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WPAS_LEVEL_DEBUG,
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WPAS_LEVEL_INFO,
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WPAS_LEVEL_WARNING,
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WPAS_LEVEL_ERROR,
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WPAS_LEVEL_CNT
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};
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#define WPAS_TYPE_STRING 's'
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#define WPAS_TYPE_INT32 'i'
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#define WPAS_TYPE_UINT32 'u'
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#define WPAS_TYPE_DICT 'e'
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/* bus */
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int wpas_open(const char *ctrl_path, struct wpas **out);
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int wpas_create(const char *ctrl_path, struct wpas **out);
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void wpas_ref(struct wpas *w);
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void wpas_unref(struct wpas *w);
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int wpas_call_async(struct wpas *w,
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struct wpas_message *m,
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wpas_callback_fn cb_fn,
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void *data,
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uint64_t timeout,
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uint64_t *cookie);
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void wpas_call_async_cancel(struct wpas *w, uint64_t cookie);
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int wpas_send(struct wpas *w,
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struct wpas_message *m,
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uint64_t timeout);
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int wpas_attach_event(struct wpas *w, sd_event *event, int priority);
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void wpas_detach_event(struct wpas *w);
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int wpas_add_match(struct wpas *w, wpas_callback_fn cb_fn, void *data);
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void wpas_remove_match(struct wpas *w, wpas_callback_fn cb_fn, void *data);
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bool wpas_is_dead(struct wpas *w);
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bool wpas_is_server(struct wpas *w);
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static inline void wpas_unref_p(struct wpas **w)
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{
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wpas_unref(*w);
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}
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#define _wpas_unref_ __attribute__((__cleanup__(wpas_unref_p)))
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/* messages */
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int wpas_message_new_event(struct wpas *w,
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const char *name,
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unsigned int level,
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struct wpas_message **out);
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int wpas_message_new_request(struct wpas *w,
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const char *name,
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struct wpas_message **out);
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int wpas_message_new_reply(struct wpas *w,
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struct wpas_message **out);
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int wpas_message_new_reply_for(struct wpas *w,
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struct wpas_message *request,
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struct wpas_message **out);
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void wpas_message_ref(struct wpas_message *m);
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void wpas_message_unref(struct wpas_message *m);
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bool wpas_message_is_event(struct wpas_message *msg, const char *name);
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bool wpas_message_is_request(struct wpas_message *msg, const char *name);
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bool wpas_message_is_reply(struct wpas_message *msg);
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bool wpas_message_is_ok(struct wpas_message *msg);
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bool wpas_message_is_fail(struct wpas_message *msg);
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uint64_t wpas_message_get_cookie(struct wpas_message *msg);
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struct wpas *wpas_message_get_bus(struct wpas_message *msg);
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unsigned int wpas_message_get_type(struct wpas_message *msg);
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unsigned int wpas_message_get_level(struct wpas_message *msg);
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const char *wpas_message_get_name(struct wpas_message *msg);
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const char *wpas_message_get_raw(struct wpas_message *msg);
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const char *wpas_message_get_ifname(struct wpas_message *msg);
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bool wpas_message_is_sealed(struct wpas_message *msg);
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const char *wpas_message_get_peer(struct wpas_message *msg);
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char *wpas_message_get_escaped_peer(struct wpas_message *msg);
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void wpas_message_set_peer(struct wpas_message *msg, const char *peer);
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int wpas_message_append_basic(struct wpas_message *m, char type, ...);
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int wpas_message_appendv_basic(struct wpas_message *m,
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char type,
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va_list args);
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int wpas_message_append(struct wpas_message *m, const char *types, ...);
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int wpas_message_appendv(struct wpas_message *m,
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const char *types,
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va_list args);
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int wpas_message_seal(struct wpas_message *m);
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int wpas_message_read_basic(struct wpas_message *m, char type, void *out);
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int wpas_message_read(struct wpas_message *m, const char *types, ...);
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int wpas_message_skip_basic(struct wpas_message *m, char type);
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int wpas_message_skip(struct wpas_message *m, const char *types);
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void wpas_message_rewind(struct wpas_message *m);
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int wpas_message_argv_read(struct wpas_message *m,
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unsigned int pos,
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char type,
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void *out);
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int wpas_message_dict_read(struct wpas_message *m,
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const char *name,
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char type,
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void *out);
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static inline void wpas_message_unref_p(struct wpas_message **m)
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{
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wpas_message_unref(*m);
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}
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#define _wpas_message_unref_ __attribute__((__cleanup__(wpas_message_unref_p)))
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#endif /* MIRACLE_WPAS_H */
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