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 struct packet;
  16
  17 struct dev_io {
  18         int fd;
  19         char *name;
  20         char *trans;
  21         int ifindex;
  22         int dev_type;
  23         uint32_t link_type;
  24         uint32_t pcap_magic;
  25         bool is_initialized;
  26         enum pcap_mode pcap_mode;
  27         enum dev_io_mode_t mode;
  28         size_t buf_len;
  29         uint8_t *buf;
  30
  31         const struct pcap_file_ops *pcap_ops;
  32         const struct dev_io_ops *ops;
  33 };
  34
  35 struct dev_io_ops {
  36         int(*open) (struct dev_io *dev, const char *name, enum dev_io_mode_t mode);
  37         int(*write) (struct dev_io *dev, struct packet *pkt);
  38         struct packet *(*read) (struct dev_io *dev);
  39         int(*set_link_type) (struct dev_io *dev, int link_type);
  40         void(*close) (struct dev_io *dev);
  41 };
  42
  43 extern struct dev_io *dev_io_create(const char *name, enum dev_io_mode_t mode);
  44 extern void dev_io_open(struct dev_io *dev);
  45 extern int dev_io_write(struct dev_io *dev, struct packet *pkt);
  46 extern struct packet *dev_io_read(struct dev_io *dev);
  47 extern int dev_io_ifindex_get(struct dev_io *dev);
  48 extern int dev_io_fd_get(struct dev_io *dev);
  49 extern const char *dev_io_name_get(struct dev_io *dev);
  50 extern int dev_io_link_type_set(struct dev_io *dev, int link_type);
  51 extern bool dev_io_is_netdev(struct dev_io *dev);
  52 extern bool dev_io_is_pcap(struct dev_io *dev);
  53 extern void dev_io_close(struct dev_io *dev);
  54
  55 #endif /* TRAFGEN_DEV_H */