trafgen_dev.h

   1 #ifndef TRAFGEN_DEV_H
   2 #define TRAFGEN_DEV_H
   3
   4 #include <stdbool.h>
   5 #include <inttypes.h>
   6
   7 #include "pcap_io.h"
   8
   9 enum dev_io_mode_t {
  10         DEV_IO_IN       = 1 << 0,
  11         DEV_IO_OUT      = 1 << 1,
  12 };
  13
  14 struct dev_io_ops;
  15
  16 struct dev_io {
  17         int fd;
  18         char *name;
  19         char *trans;
  20         int ifindex;
  21         int dev_type;
  22         uint32_t link_type;
  23         uint32_t pcap_magic;
  24         bool is_initialized;
  25         enum pcap_mode pcap_mode;
  26
  27         const struct pcap_file_ops *pcap_ops;
  28         const struct dev_io_ops *ops;
  29 };
  30
  31 struct dev_io_ops {
  32         int(*open) (struct dev_io *dev, const char *name, enum dev_io_mode_t mode);
  33         int(*write) (struct dev_io *dev, const uint8_t *buf, size_t len);
  34         int(*read) (struct dev_io *dev, uint8_t *buf, size_t len, struct timespec *tstamp);
  35         int(*set_link_type) (struct dev_io *dev, int link_type);
  36         void(*close) (struct dev_io *dev);
  37 };
  38
  39 extern struct dev_io *dev_io_open(const char *name, enum dev_io_mode_t mode);
  40 extern int dev_io_write(struct dev_io *dev, const uint8_t *buf, size_t len);
  41 extern int dev_io_read(struct dev_io *dev, uint8_t *buf, size_t len,
  42                        struct timespec *tstamp);
  43 extern int dev_io_ifindex_get(struct dev_io *dev);
  44 extern int dev_io_fd_get(struct dev_io *dev);
  45 extern const char *dev_io_name_get(struct dev_io *dev);
  46 extern int dev_io_link_type_set(struct dev_io *dev, int link_type);
  47 extern bool dev_io_is_netdev(struct dev_io *dev);
  48 extern bool dev_io_is_pcap(struct dev_io *dev);
  49 extern void dev_io_close(struct dev_io *dev);
  50
  51 #endif /* TRAFGEN_DEV_H */