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Annotation of embedaddon/bird2/nest/cli.h, revision 1.1.1.1

1.1       misho       1: /*
                      2:  *     BIRD Internet Routing Daemon -- Command-Line Interface
                      3:  *
                      4:  *     (c) 1999--2000 Martin Mares <mj@ucw.cz>
                      5:  *
                      6:  *     Can be freely distributed and used under the terms of the GNU GPL.
                      7:  */
                      8: 
                      9: #ifndef _BIRD_CLI_H_
                     10: #define _BIRD_CLI_H_
                     11: 
                     12: #include "lib/resource.h"
                     13: #include "lib/event.h"
                     14: 
                     15: #define CLI_RX_BUF_SIZE 4096
                     16: #define CLI_TX_BUF_SIZE 4096
                     17: #define CLI_MAX_ASYNC_QUEUE 4096
                     18: 
                     19: #define CLI_MSG_SIZE 500
                     20: #define CLI_LINE_SIZE 512
                     21: 
                     22: struct cli_out {
                     23:   struct cli_out *next;
                     24:   byte *wpos, *outpos, *end;
                     25:   byte buf[0];
                     26: };
                     27: 
                     28: typedef struct cli {
                     29:   node n;                              /* Node in list of all log hooks */
                     30:   pool *pool;
                     31:   void *priv;                          /* Private to sysdep layer */
                     32:   byte *rx_buf, *rx_pos, *rx_aux;      /* sysdep */
                     33:   struct cli_out *tx_buf, *tx_pos, *tx_write;
                     34:   event *event;
                     35:   void (*cont)(struct cli *c);
                     36:   void (*cleanup)(struct cli *c);
                     37:   void *rover;                         /* Private to continuation routine */
                     38:   int last_reply;
                     39:   int restricted;                      /* CLI is restricted to read-only commands */
                     40:   struct linpool *parser_pool;         /* Pool used during parsing */
                     41:   struct linpool *show_pool;           /* Pool used during route show */
                     42:   byte *ring_buf;                      /* Ring buffer for asynchronous messages */
                     43:   byte *ring_end, *ring_read, *ring_write;     /* Pointers to the ring buffer */
                     44:   uint ring_overflow;                  /* Counter of ring overflows */
                     45:   uint log_mask;                       /* Mask of allowed message levels */
                     46:   uint log_threshold;                  /* When free < log_threshold, store only important messages */
                     47:   uint async_msg_size;                 /* Total size of async messages queued in tx_buf */
                     48: } cli;
                     49: 
                     50: extern pool *cli_pool;
                     51: extern struct cli *this_cli;           /* Used during parsing */
                     52: 
                     53: #define CLI_ASYNC_CODE 10000
                     54: 
                     55: /* Functions to be called by command handlers */
                     56: 
                     57: void cli_printf(cli *, int, char *, ...);
                     58: #define cli_msg(x...) cli_printf(this_cli, x)
                     59: void cli_set_log_echo(cli *, uint mask, uint size);
                     60: 
                     61: /* Functions provided to sysdep layer */
                     62: 
                     63: cli *cli_new(void *);
                     64: void cli_init(void);
                     65: void cli_free(cli *);
                     66: void cli_kick(cli *);
                     67: void cli_written(cli *);
                     68: void cli_echo(uint class, byte *msg);
                     69: 
                     70: static inline int cli_access_restricted(void)
                     71: {
                     72:   if (this_cli && this_cli->restricted)
                     73:     return (cli_printf(this_cli, 8007, "Access denied"), 1);
                     74:   else
                     75:     return 0;
                     76: }
                     77: 
                     78: /* Functions provided by sysdep layer */
                     79: 
                     80: void cli_write_trigger(cli *);
                     81: int cli_get_command(cli *);
                     82: 
                     83: #endif