fix hotplug

1 files changed, 0 insertions, 519 deletions

diff --git a/hotplug-rule.c b/hotplug-rule.c
deleted file mode 100644
index 1f3189d..0000000
--- a/hotplug-rule.c
+++ /dev/null
@@ -1,519 +0,0 @@
-#include <sys/stat.h>
-
-#include <libgen.h>
-#include <regex.h>
-
-#include <json/json.h>
-#include <libubox/avl-cmp.h>
-#include <libubox/blobmsg_json.h>
-
-#include "hotplug.h"
-
-static struct blob_buf b;
-
-static int rule_process_expr(struct blob_attr *cur, struct blob_attr *msg);
-static int rule_process_cmd(struct blob_attr *cur, struct blob_attr *msg);
-
-static char *__msg_find_var(struct blob_attr *msg, const char *name)
-{
-	struct blob_attr *cur;
-	int rem;
-
-	blob_for_each_attr(cur, msg, rem) {
-		if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING)
-			continue;
-
-		if (strcmp(blobmsg_name(cur), name) != 0)
-			continue;
-
-		return blobmsg_data(cur);
-	}
-
-	return NULL;
-}
-
-static char *msg_find_var(struct blob_attr *msg, const char *name)
-{
-	char *str;
-
-	if (!strcmp(name, "DEVICENAME") || !strcmp(name, "DEVNAME")) {
-		str = __msg_find_var(msg, "DEVPATH");
-		if (!str)
-			return NULL;
-
-		return basename(str);
-	}
-
-	return __msg_find_var(msg, name);
-}
-
-static void
-rule_get_tuple(struct blob_attr *cur, struct blob_attr **tb, int t1, int t2)
-{
-	static struct blobmsg_policy expr_tuple[3] = {
-		{ .type = BLOBMSG_TYPE_STRING },
-		{},
-		{},
-	};
-
-	expr_tuple[1].type = t1;
-	expr_tuple[2].type = t2;
-	blobmsg_parse_array(expr_tuple, 3, tb, blobmsg_data(cur), blobmsg_data_len(cur));
-}
-
-static int handle_if(struct blob_attr *expr, struct blob_attr *msg)
-{
-	struct blob_attr *tb[4];
-	int ret;
-
-	static const struct blobmsg_policy if_tuple[4] = {
-		{ .type = BLOBMSG_TYPE_STRING },
-		{ .type = BLOBMSG_TYPE_ARRAY },
-		{ .type = BLOBMSG_TYPE_ARRAY },
-		{ .type = BLOBMSG_TYPE_ARRAY },
-	};
-
-	blobmsg_parse_array(if_tuple, 4, tb, blobmsg_data(expr), blobmsg_data_len(expr));
-
-	if (!tb[1] || !tb[2])
-		return 0;
-
-	ret = rule_process_expr(tb[1], msg);
-	if (ret < 0)
-		return 0;
-
-	if (ret)
-		return rule_process_cmd(tb[2], msg);
-
-	if (!tb[3])
-		return 0;
-
-	return rule_process_cmd(tb[3], msg);
-}
-
-static int handle_case(struct blob_attr *expr, struct blob_attr *msg)
-{
-	struct blob_attr *tb[3], *cur;
-	const char *var;
-	int rem;
-
-	rule_get_tuple(expr, tb, BLOBMSG_TYPE_STRING, BLOBMSG_TYPE_TABLE);
-	if (!tb[1] || !tb[2])
-		return 0;
-
-	var = msg_find_var(msg, blobmsg_data(tb[1]));
-	if (!var)
-		return 0;
-
-	blobmsg_for_each_attr(cur, tb[2], rem) {
-		if (!strcmp(var, blobmsg_name(cur)))
-			return rule_process_cmd(cur, msg);
-	}
-
-	return 0;
-}
-
-static int handle_return(struct blob_attr *expr, struct blob_attr *msg)
-{
-	return -2;
-}
-
-static int handle_include(struct blob_attr *expr, struct blob_attr *msg)
-{
-	struct blob_attr *tb[3];
-	struct rule_file *r;
-
-	rule_get_tuple(expr, tb, BLOBMSG_TYPE_STRING, 0);
-	if (!tb[1])
-		return 0;
-
-	r = rule_file_get(blobmsg_data(tb[1]));
-	if (!r)
-		return 0;
-
-	return rule_process_cmd(r->data, msg);
-}
-
-static const struct rule_handler cmd[] = {
-	{ "if", handle_if },
-	{ "case", handle_case },
-	{ "return", handle_return },
-	{ "include", handle_include },
-};
-
-static int eq_regex_cmp(const char *str, const char *pattern, bool regex)
-{
-	regex_t reg;
-	int ret;
-
-	if (!regex)
-		return !strcmp(str, pattern);
-
-	if (regcomp(&reg, pattern, REG_EXTENDED | REG_NOSUB))
-		return 0;
-
-	ret = !regexec(&reg, str, 0, NULL, 0);
-	regfree(&reg);
-
-	return ret;
-}
-
-static int expr_eq_regex(struct blob_attr *expr, struct blob_attr *msg, bool regex)
-{
-	struct blob_attr *tb[3], *cur;
-	const char *var;
-	int rem;
-
-	rule_get_tuple(expr, tb, BLOBMSG_TYPE_STRING, 0);
-	if (!tb[1] || !tb[2])
-		return -1;
-
-	var = msg_find_var(msg, blobmsg_data(tb[1]));
-	if (!var)
-		return 0;
-
-	switch(blobmsg_type(tb[2])) {
-	case BLOBMSG_TYPE_STRING:
-		return eq_regex_cmp(var, blobmsg_data(tb[2]), regex);
-	case BLOBMSG_TYPE_ARRAY:
-		blobmsg_for_each_attr(cur, tb[2], rem) {
-			if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING) {
-				rule_error(cur, "Unexpected element type");
-				return -1;
-			}
-
-			if (eq_regex_cmp(var, blobmsg_data(cur), regex))
-				return 1;
-		}
-		return 0;
-	default:
-		rule_error(tb[2], "Unexpected element type");
-		return -1;
-	}
-}
-
-static int handle_expr_eq(struct blob_attr *expr, struct blob_attr *msg)
-{
-	return expr_eq_regex(expr, msg, false);
-}
-
-static int handle_expr_regex(struct blob_attr *expr, struct blob_attr *msg)
-{
-	return expr_eq_regex(expr, msg, true);
-}
-
-static int handle_expr_has(struct blob_attr *expr, struct blob_attr *msg)
-{
-	struct blob_attr *tb[3], *cur;
-	int rem;
-
-	rule_get_tuple(expr, tb, 0, 0);
-	if (!tb[1])
-		return -1;
-
-	switch(blobmsg_type(tb[1])) {
-	case BLOBMSG_TYPE_STRING:
-		return !!msg_find_var(msg, blobmsg_data(tb[1]));
-	case BLOBMSG_TYPE_ARRAY:
-		blobmsg_for_each_attr(cur, tb[1], rem) {
-			if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING) {
-				rule_error(cur, "Unexpected element type");
-				return -1;
-			}
-
-			if (msg_find_var(msg, blobmsg_data(cur)))
-				return 1;
-		}
-		return 0;
-	default:
-		rule_error(tb[1], "Unexpected element type");
-		return -1;
-	}
-}
-
-static int expr_and_or(struct blob_attr *expr, struct blob_attr *msg, bool and)
-{
-	struct blob_attr *cur;
-	int ret, rem;
-	int i = 0;
-
-	blobmsg_for_each_attr(cur, expr, rem) {
-		if (i++ < 1)
-			continue;
-
-		ret = rule_process_expr(cur, msg);
-		if (ret < 0)
-			return ret;
-
-		if (ret != and)
-			return ret;
-	}
-
-	return and;
-}
-
-static int handle_expr_and(struct blob_attr *expr, struct blob_attr *msg)
-{
-	return expr_and_or(expr, msg, 1);
-}
-
-static int handle_expr_or(struct blob_attr *expr, struct blob_attr *msg)
-{
-	return expr_and_or(expr, msg, 0);
-}
-
-static int handle_expr_not(struct blob_attr *expr, struct blob_attr *msg)
-{
-	struct blob_attr *tb[3];
-
-	rule_get_tuple(expr, tb, BLOBMSG_TYPE_ARRAY, 0);
-	if (!tb[1])
-		return -1;
-
-	return rule_process_expr(tb[1], msg);
-}
-
-static const struct rule_handler expr[] = {
-	{ "eq", handle_expr_eq },
-	{ "regex", handle_expr_regex },
-	{ "has", handle_expr_has },
-	{ "and", handle_expr_and },
-	{ "or", handle_expr_or },
-	{ "not", handle_expr_not },
-};
-
-static int
-__rule_process_type(struct blob_attr *cur, struct blob_attr *msg,
-		    const struct rule_handler *h, int n, bool *found)
-{
-	const char *name = blobmsg_data(blobmsg_data(cur));
-	int i;
-
-	for (i = 0; i < n; i++) {
-		if (strcmp(name, h[i].name) != 0)
-			continue;
-
-		*found = true;
-		return h[i].handler(cur, msg);
-	}
-
-	*found = false;
-	return -1;
-}
-
-static int rule_process_expr(struct blob_attr *cur, struct blob_attr *msg)
-{
-	bool found;
-	int ret;
-
-	if (blobmsg_type(cur) != BLOBMSG_TYPE_ARRAY ||
-	    blobmsg_type(blobmsg_data(cur)) != BLOBMSG_TYPE_STRING) {
-		rule_error(cur, "Unexpected element type");
-		return -1;
-	}
-
-	ret = __rule_process_type(cur, msg, expr, ARRAY_SIZE(expr), &found);
-	if (!found)
-		rule_error(cur, "Unknown expression type");
-
-	return ret;
-}
-
-static void cmd_add_string(const char *pattern, struct blob_attr *msg)
-{
-	char *dest, *next, *str;
-	int len = 0;
-	bool var = false;
-
-	dest = blobmsg_alloc_string_buffer(&b, NULL, 1);
-	str = alloca(strlen(pattern) + 1);
-	strcpy(str, pattern);
-	next = str;
-
-	while (*str) {
-		const char *cur;
-		int cur_len = 0;
-
-		next = strchr(str, '%');
-		if (!next)
-			next = str + strlen(str);
-
-		if (var) {
-			if (next > str) {
-				*next = 0;
-				cur = msg_find_var(msg, str);
-				if (cur)
-					cur_len = strlen(cur);
-			} else {
-				cur = str - 1;
-				cur_len = 1;
-			}
-		} else {
-			cur = str;
-			cur_len = next - str;
-		}
-
-		if (cur_len) {
-			dest = blobmsg_realloc_string_buffer(&b, cur_len + 1);
-			memcpy(dest + len, cur, cur_len);
-			len += cur_len;
-		}
-
-		var = !var;
-		str = next + 1;
-	}
-
-	dest[len] = 0;
-	blobmsg_add_string_buffer(&b);
-}
-
-static int cmd_process_strings(struct blob_attr *attr, struct blob_attr *msg)
-{
-	struct blob_attr *cur;
-	int args = -1;
-	int rem;
-	void *c;
-
-	blob_buf_init(&b, 0);
-	c = blobmsg_open_array(&b, NULL);
-	blobmsg_for_each_attr(cur, attr, rem) {
-		if (args++ < 0)
-			continue;
-
-		if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING) {
-			rule_error(attr, "Invalid argument in command");
-			return -1;
-		}
-
-		cmd_add_string(blobmsg_data(cur), msg);
-	}
-
-	blobmsg_close_array(&b, c);
-
-	return 0;
-}
-
-static int __rule_process_cmd(struct blob_attr *cur, struct blob_attr *msg)
-{
-	const char *name;
-	bool found;
-	int ret;
-
-	if (blobmsg_type(cur) != BLOBMSG_TYPE_ARRAY ||
-	    blobmsg_type(blobmsg_data(cur)) != BLOBMSG_TYPE_STRING) {
-		rule_error(cur, "Unexpected element type");
-		return -1;
-	}
-
-	ret = __rule_process_type(cur, msg, cmd, ARRAY_SIZE(cmd), &found);
-	if (found)
-		return ret;
-
-	name = blobmsg_data(blobmsg_data(cur));
-	ret = cmd_process_strings(cur, msg);
-	if (ret)
-		return ret;
-
-	rule_handle_command(name, blob_data(b.head));
-
-	return 0;
-}
-
-static int rule_process_cmd(struct blob_attr *block, struct blob_attr *msg)
-{
-	struct blob_attr *cur;
-	int rem;
-	int ret;
-	int i = 0;
-
-	if (blobmsg_type(block) != BLOBMSG_TYPE_ARRAY) {
-		rule_error(block, "Unexpected element type");
-		return -1;
-	}
-
-	blobmsg_for_each_attr(cur, block, rem) {
-		switch(blobmsg_type(cur)) {
-		case BLOBMSG_TYPE_STRING:
-			if (!i)
-				return __rule_process_cmd(block, msg);
-		default:
-			ret = rule_process_cmd(cur, msg);
-			if (ret < -1)
-				return ret;
-			break;
-		}
-		i++;
-	}
-
-	return 0;
-}
-
-void rule_process_msg(struct rule_file *f, struct blob_attr *msg)
-{
-	rule_process_cmd(f->data, msg);
-}
-
-static struct rule_file *
-rule_file_load(const char *filename)
-{
-	struct rule_file *r;
-	struct stat st;
-
-	json_object *obj = NULL;
-
-	blob_buf_init(&b, 0);
-
-	if (stat(filename, &st))
-		return NULL;
-
-	obj = json_object_from_file((char *) filename);
-	if (is_error(obj))
-		return NULL;
-
-	if (!json_object_is_type(obj, json_type_array)) {
-		json_object_put(obj);
-		return NULL;
-	}
-
-	blobmsg_add_json_element(&b, filename, obj);
-	json_object_put(obj);
-
-	r = calloc(1, sizeof(*r) + blob_len(b.head));
-	memcpy(r->data, blob_data(b.head), blob_len(b.head));
-	r->avl.key = blobmsg_name(r->data);
-
-	return r;
-}
-
-static struct avl_tree rule_files;
-
-struct rule_file *
-rule_file_get(const char *filename)
-{
-	struct rule_file *r;
-
-	if (!rule_files.comp)
-		avl_init(&rule_files, avl_strcmp, false, NULL);
-
-	r = avl_find_element(&rule_files, filename, r, avl);
-	if (r)
-		return r;
-
-	r = rule_file_load(filename);
-	if (!r)
-		return NULL;
-
-	avl_insert(&rule_files, &r->avl);
-	return r;
-}
-
-void
-rule_file_free_all(void)
-{
-	struct rule_file *r, *next;
-
-	avl_remove_all_elements(&rule_files, r, avl, next)
-		free(r);
-
-	blob_buf_free(&b);
-}