diff options
Diffstat (limited to 'capture-pcap-util.h')
| -rw-r--r-- | capture-pcap-util.h | 42 |
1 files changed, 30 insertions, 12 deletions
diff --git a/capture-pcap-util.h b/capture-pcap-util.h index 1b78718341..0b07e2b274 100644 --- a/capture-pcap-util.h +++ b/capture-pcap-util.h @@ -33,6 +33,12 @@ extern "C" { #include <epan/address.h> +#include <pcap.h> + +/* declaration of pcap_t here, to reduce pcap dependencies */ +/*typedef struct pcap pcap_t;*/ + + /* * XXX - this is also the traditional default snapshot size in * tcpdump - but, if IPv6 is enabled, it defaults to 96, to get an @@ -43,27 +49,28 @@ extern "C" { */ #define MIN_PACKET_SIZE 68 /* minimum amount of packet data we can read */ -#define MAX_WIN_IF_NAME_LEN 511 +/* XXX - this must be optimized, removing the dependency!!! */ +#define CAPTURE_PCAP_ERRBUF_SIZE PCAP_ERRBUF_SIZE /* * The list of interfaces returned by "get_interface_list()" is * a list of these structures. */ typedef struct { - char *name; - char *description; - GSList *ip_addr; /* containing address values */ - gboolean loopback; + char *name; /* e.g. "eth0" */ + char *description; /* from OS, e.g. "Local Area Connection" or NULL */ + GSList *ip_addr; /* containing address values of if_addr_t */ + gboolean loopback; /* TRUE if loopback, FALSE otherwise */ } if_info_t; /* * An address in the "ip_addr" list. */ typedef struct { - address_type type; + address_type type; /* AF_INET or AF_INET6 */ union { - guint32 ip4_addr; - guint8 ip6_addr[16]; + guint32 ip4_addr; /* 4 byte IP V4 address, or */ + guint8 ip6_addr[16];/* 16 byte IP V6 address */ } ip_addr; } if_addr_t; @@ -86,16 +93,27 @@ gchar *cant_get_if_list_error_message(const char *err_str); * a list of these structures. */ typedef struct { - int dlt; - char *name; - char *description; + int dlt; /* e.g. DLT_EN10MB (which is 1) */ + char *name; /* e.g. "EN10MB" or "DLT 1" */ + char *description; /* descriptive name from wiretap e.g. "Ethernet", NULL if unknown */ } data_link_info_t; -int get_pcap_linktype(pcap_t *pch, const char *devname); GList *get_pcap_linktype_list(const char *devname, char *err_buf); void free_pcap_linktype_list(GList *linktype_list); + +/* get/set the link type of an interface */ +/* (only used in capture_loop.c / capture-pcap-util.c) */ +int get_pcap_linktype(pcap_t *pch, const char *devname); const char *set_pcap_linktype(pcap_t *pch, char *devname, int dlt); + +#ifdef HAVE_PCAP_DATALINK_VAL_TO_NAME +const char *linktype_val_to_name(int dlt); +#endif +#ifdef HAVE_PCAP_DATALINK_NAME_TO_VAL +int linktype_name_to_val(const char *linktype); +#endif + #ifdef __cplusplus } #endif /* __cplusplus */ |