diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/ZeroTierOne.h | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/include/ZeroTierOne.h b/include/ZeroTierOne.h index 91700886..377af63f 100644 --- a/include/ZeroTierOne.h +++ b/include/ZeroTierOne.h @@ -1080,6 +1080,7 @@ typedef int (*ZT_DataStorePutFunction)( * (4) Remote address * (5) Packet data * (6) Packet length + * (7) Desired IP TTL or 0 to use default * * If there is only one local interface it is safe to ignore the local * interface address. Otherwise if running with multiple interfaces, the @@ -1087,17 +1088,22 @@ typedef int (*ZT_DataStorePutFunction)( * the ss_family field is zero (NULL address), a random or preferred * default interface should be used. * + * If TTL is nonzero, packets should have their IP TTL value set to this + * value if possible. If this is not possible it is acceptable to ignore + * this value and send anyway with normal or default TTL. + * * The function must return zero on success and may return any error code * on failure. Note that success does not (of course) guarantee packet * delivery. It only means that the packet appears to have been sent. */ typedef int (*ZT_WirePacketSendFunction)( - ZT_Node *, /* Node */ + ZT_Node *, /* Node */ void *, /* User ptr */ const struct sockaddr_storage *, /* Local address */ const struct sockaddr_storage *, /* Remote address */ const void *, /* Packet data */ - unsigned int); /* Packet length */ + unsigned int, /* Packet length */ + unsigned int); /* TTL or 0 to use default */ /****************************************************************************/ /* C Node API */ |