gitweb.dragonflybsd.org Git - dragonfly.git/blame_incremental

... / ...

Commit	Line	Data
	1	/*
	2	* Copyright (c) 2010 The DragonFly Project. All rights reserved.
	3	*
	4	* This code is derived from software contributed to The DragonFly Project
	5	* by Alex Hornung <ahornung@gmail.com>
	6	*
	7	* Redistribution and use in source and binary forms, with or without
	8	* modification, are permitted provided that the following conditions
	9	* are met:
	10	*
	11	* 1. Redistributions of source code must retain the above copyright
	12	* notice, this list of conditions and the following disclaimer.
	13	* 2. Redistributions in binary form must reproduce the above copyright
	14	* notice, this list of conditions and the following disclaimer in
	15	* the documentation and/or other materials provided with the
	16	* distribution.
	17	* 3. Neither the name of The DragonFly Project nor the names of its
	18	* contributors may be used to endorse or promote products derived
	19	* from this software without specific, prior written permission.
	20	*
	21	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
	22	* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
	23	* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
	24	* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
	25	* COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
	26	* INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
	27	* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
	28	* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
	29	* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
	30	* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
	31	* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	32	* SUCH DAMAGE.
	33	*/
	34
	35	#include <sys/queue.h>
	36	#include <libprop/proplib.h>
	37
	38	#define UDEV_DEVICE_PATH "/dev/udev"
	39	#define LOCAL_BACKLOG 5
	40
	41	#define UDEV_DEVICE_FD_IDX 0
	42	#define UDEV_SOCKET_FD_IDX 1
	43	#define NFDS 2
	44
	45
	46	struct pdev_array_entry {
	47	int32_t refs;
	48	int64_t generation;
	49	prop_array_t pdev_array;
	50	TAILQ_ENTRY(pdev_array_entry) link;
	51	};
	52
	53	struct event_filter {
	54	int id;
	55	int neg;
	56	int type;
	57	char *key;
	58	char *wildcard_match;
	59	regex_t regex_match;
	60
	61	TAILQ_ENTRY(event_filter) link;
	62	};
	63
	64	struct udev_monitor;
	65
	66	struct client_info {
	67	pthread_t tid;
	68	int fd;
	69	struct udev_monitor *udm;
	70	struct event_filter ev_filt;
	71	};
	72
	73	struct udev_monitor_event {
	74	prop_dictionary_t ev_dict;
	75	TAILQ_ENTRY(udev_monitor_event) link;
	76	};
	77
	78	struct udev_monitor {
	79	pthread_mutex_t q_lock;
	80	pthread_cond_t cond;
	81	struct client_info *cli;
	82	TAILQ_HEAD(, event_filter) ev_filt;
	83	TAILQ_HEAD(, udev_monitor_event) ev_queue;
	84	TAILQ_ENTRY(udev_monitor) link;
	85	};
	86
	87	struct cmd_function {
	88	const char *cmd;
	89	int (fn)(struct client_info , prop_dictionary_t);
	90	};
	91
	92	/* From udevd_socket.c */
	93	int init_local_server(const char *sockfile, int socktype, int nonblock);
	94	int block_descriptor(int s);
	95	int unblock_descriptor(int s);
	96	int read_xml(int s, char *buf, size_t buf_sz);
	97	int send_xml(int s, char *xml);
	98
	99	/* From udevd_pdev.c */
	100	void pdev_array_entry_ref(struct pdev_array_entry *pae);
	101	void pdev_array_entry_unref(struct pdev_array_entry *pae);
	102	void pdev_array_entry_insert(prop_array_t pa);
	103	struct pdev_array_entry *pdev_array_entry_get(int64_t generation);
	104	struct pdev_array_entry *pdev_array_entry_get_last(void);
	105
	106	/* From udevd_client.c */
	107	void handle_new_connection(int s);
	108	int client_cmd_getdevs(struct client_info *cli, prop_dictionary_t dict);
	109
	110
	111	/* From udevd_monitor.c */
	112	void monitor_queue_event(prop_dictionary_t ev_dict);
	113	int client_cmd_monitor(struct client_info *cli, prop_dictionary_t dict);
	114	int match_event_filter(struct udev_monitor *udm, prop_dictionary_t ev_dict);
	115	struct udev_monitor udev_monitor_init(struct client_info cli, prop_array_t filters);
	116	void udev_monitor_free(struct udev_monitor *udm);
	117
	118	/* From udevd.c */
	119	int ignore_signal(int signum);