diff options
Diffstat (limited to 'epan/proto.h')
| -rw-r--r-- | epan/proto.h | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/epan/proto.h b/epan/proto.h index b48ecadeb7..de96b7cec7 100644 --- a/epan/proto.h +++ b/epan/proto.h @@ -45,6 +45,8 @@ #include "wsutil/nstime.h" #include "time_fmt.h" #include "tvbuff.h" +#include "value_string.h" +#include "packet_info.h" #include "ftypes/ftypes.h" #include "register.h" #include "ws_symbol_export.h" @@ -2847,6 +2849,47 @@ WS_DLL_PUBLIC proto_item * proto_tree_add_ascii_7bits_item(proto_tree *tree, const int hfindex, tvbuff_t *tvb, const guint bit_offset, const gint no_of_chars); +/** Add a checksum filed to a proto_tree. + This standardizes the display of a checksum field as well as any + status and expert info supporting it. + @param tree the tree to append this item to + @param tvb the tv buffer of the current data + @param offset start of data in tvb + @param hf_checksum checksum field index + @param hf_checksum_status optional checksum status field index. If none + exists, just pass -1 + @param bad_checksum_expert optional expert info for a bad checksum. If + none exists, just pass NULL + @pinfo Packet info used for optional expert info. If unused, NULL can + be passed + @param computed_checksum Checksum to verify against + @param encoding data encoding of checksum from tvb + @param flags bitmask field of PROTO_CHECKSUM_ options + @return the newly created item */ +WS_DLL_PUBLIC proto_item * +proto_tree_add_checksum(proto_tree *tree, tvbuff_t *tvb, const guint offset, + const int hf_checksum, const int hf_checksum_status, struct expert_field* bad_checksum_expert, + packet_info *pinfo, guint32 computed_checksum, const guint encoding, const guint flags); + +typedef enum +{ + PROTO_CHECKSUM_E_BAD = 0, + PROTO_CHECKSUM_E_GOOD, + PROTO_CHECKSUM_E_UNVERIFIED, + PROTO_CHECKSUM_E_NOT_PRESENT + +} proto_checksum_enum_e; + +#define PROTO_CHECKSUM_NO_FLAGS 0x00 /**< Don't use any flags */ +#define PROTO_CHECKSUM_VERIFY 0x01 /**< Compare against computed checksum */ +#define PROTO_CHECKSUM_GENERATED 0x02 /**< Checksum is generated only */ +#define PROTO_CHECKSUM_IN_CKSUM 0x04 /**< Internet checksum routine used for computation */ +#define PROTO_CHECKSUM_ZERO 0x08 /**< Computed checksum must be zero (but correct checksum can't be calculated) */ +#define PROTO_CHECKSUM_NOT_PRESENT 0x10 /**< Checksum field is not present (Just populates status field) */ + +WS_DLL_PUBLIC const value_string proto_checksum_vals[]; + + /** Check if given string is a valid field name @param field_name the field name to check @return 0 if valid, else first illegal character */ |