1 /* 2 * Copyright (C) 2013 Felix Fietkau <nbd@openwrt.org> 3 * Copyright (C) 2013 John Crispin <blogic@openwrt.org> 4 * 5 * This program is free software; you can redistribute it and/or modify 6 * it under the terms of the GNU Lesser General Public License version 2.1 7 * as published by the Free Software Foundation 8 * 9 * This program is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 * GNU General Public License for more details. 13 */ 14 15 #ifndef __PROCD_UTILS_H 16 #define __PROCD_UTILS_H 17 18 #include <sys/inotify.h> 19 20 #include <libubox/avl.h> 21 #include <libubox/blob.h> 22 #include <libubox/blobmsg.h> 23 #include <libubox/uloop.h> 24 25 #define CMDLINE_SIZE 2048 26 27 struct blobmsg_list_node { 28 struct avl_node avl; 29 struct blob_attr *data; 30 }; 31 32 typedef bool (*blobmsg_list_cmp)(struct blobmsg_list_node *l1, struct blobmsg_list_node *l2); 33 typedef void (*blobmsg_update_cb)(struct blobmsg_list_node *n); 34 35 struct blobmsg_list { 36 struct avl_tree avl; 37 int node_offset; 38 int node_len; 39 40 blobmsg_list_cmp cmp; 41 }; 42 43 #define blobmsg_list_simple_init(list) \ 44 __blobmsg_list_init(list, 0, sizeof(struct blobmsg_list_node), NULL) 45 46 #define blobmsg_list_init(list, type, field, cmp) \ 47 __blobmsg_list_init(list, offsetof(type, field), sizeof(type), cmp) 48 49 #define blobmsg_list_for_each(list, element) \ 50 avl_for_each_element(&(list)->avl, element, avl) 51 52 void __blobmsg_list_init(struct blobmsg_list *list, int offset, int len, blobmsg_list_cmp cmp); 53 int blobmsg_list_fill(struct blobmsg_list *list, void *data, int len, bool array); 54 void blobmsg_list_free(struct blobmsg_list *list); 55 bool blobmsg_list_equal(struct blobmsg_list *l1, struct blobmsg_list *l2); 56 void blobmsg_list_move(struct blobmsg_list *list, struct blobmsg_list *src); 57 char *get_cmdline_val_offset(const char *name, char *out, int len, int offset); 58 char *get_active_console(char *out, int len); 59 60 #define get_cmdline_val(name, out, len) \ 61 get_cmdline_val_offset(name, out, len, 0) 62 63 int patch_fd(const char *device, int fd, int flags); 64 int patch_stdio(const char *device); 65 66 struct inotify_watch; 67 68 typedef void (*inotify_watch_cb)(struct inotify_watch *w, 69 struct inotify_event *ev); 70 71 struct inotify_watch { 72 struct uloop_fd ufd; 73 inotify_watch_cb cb; 74 }; 75 76 int inotify_watch_open(struct inotify_watch *w, inotify_watch_cb cb); 77 int inotify_watch_add(struct inotify_watch *w, const char *path, 78 uint32_t mask); 79 80 #endif 81
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