release/src/router/hotplug2/rules.h

   1 /*****************************************************************************\
   2 *  _  _       _          _              ___                                   *
   3 * | || | ___ | |_  _ __ | | _  _  __ _ |_  )                                  *
   4 * | __ |/ _ \|  _|| '_ \| || || |/ _` | / /                                   *
   5 * |_||_|\___/ \__|| .__/|_| \_,_|\__, |/___|                                  *
   6 *                 |_|            |___/                                        *
   7 \*****************************************************************************/
   8
   9 #ifndef RULES_H
  10 #define RULES_H 1
  11
  12 #define COND_MATCH_CMP                  0       /* == */
  13 #define COND_MATCH_RE                   1       /* ~~ */
  14 #define COND_NMATCH_CMP                 2       /* != */
  15 #define COND_NMATCH_RE                  3       /* !~ */
  16 #define COND_MATCH_IS                   4       /* is */
  17
  18 #define ACT_RUN_SHELL                   0       /* system app <...>, run app <...> */
  19 #define ACT_RUN_NOSHELL                 1       /* exec app <...> */
  20 #define ACT_STOP_PROCESSING             2       /* break */
  21 #define ACT_STOP_IF_FAILED              3       /* break_if_failed */
  22 #define ACT_MAKE_DEVICE                 4       /* makedev <...> */
  23 #define ACT_CHMOD                       5       /* chmod <...> */
  24 #define ACT_CHGRP                       6       /* chgrp <...> */
  25 #define ACT_CHOWN                       7       /* chown <...> */
  26 #define ACT_SYMLINK                     8       /* symlink <...> */
  27 #define ACT_NEXT_EVENT                  9       /* next */
  28 #define ACT_NEXT_IF_FAILED              10      /* next_if_failed */
  29 #define ACT_SETENV                      11      /* setenv <...> */
  30 #define ACT_REMOVE                      12      /* remove <...> */
  31 #define ACT_DEBUG                       13      /* debug */
  32 #define ACT_FLAG_NOTHROTTLE             14      /* sets 'nothrottle' flag */
  33
  34 #define EVAL_MATCH                      1
  35 #define EVAL_NOT_MATCH                  0
  36 #define EVAL_NOT_AVAILABLE              -1
  37
  38 #define QUOTES_NONE                     0
  39 #define QUOTES_SINGLE                   1
  40 #define QUOTES_DOUBLE                   2
  41
  42 #define STATUS_KEY                      0       /* just about anything */
  43 #define STATUS_CONDTYPE                 1       /* viz COND_* */
  44 #define STATUS_VALUE                    2       /* just about anything */
  45 #define STATUS_INITIATOR                3       /* ',' for next cond, '{' for block*/
  46 #define STATUS_ACTION                   4       /* viz ACT_* and '}' for end of block */
  47
  48 #define FLAG_UNSET                      0
  49 #define FLAG_ALL                        0xffffffff
  50 #define FLAG_NOTHROTTLE                 1       /* We want this rule to ignore max_children limit */
  51
  52 struct key_rec_t {
  53         char *key;
  54         int param;
  55         int type;
  56 };
  57
  58 struct condition_t {
  59         int type;
  60         char *key;
  61         char *value;
  62 };
  63
  64 struct action_t {
  65         int type;
  66         char **parameter;
  67 };
  68
  69 struct rule_t {
  70         struct condition_t *conditions;
  71         int conditions_c;
  72
  73         struct action_t *actions;
  74         int actions_c;
  75
  76         unsigned int flags;
  77 };
  78
  79 struct rules_t {
  80         struct rule_t *rules;
  81         int rules_c;
  82 };
  83
  84 int rule_condition_eval(struct hotplug2_event_t *, struct condition_t *);
  85 int rule_execute(struct hotplug2_event_t *, struct rule_t *);
  86 void rule_flags(struct rule_t *);
  87 void rules_free(struct rules_t *);
  88 struct rules_t *rules_from_config(char *, struct rules_t *);
  89
  90 #endif /* ifndef RULES_H*/