Re: [tcpdump-workers] Link-Layer Header Type request: USB 2.0

2019-07-22 Thread Tomasz Moń
On Tue, Jul 23, 2019 at 8:27 AM Guy Harris wrote: > So "USB 2.0" really means "USB 2.0", and we could describe this as something > such as > > LINKTYPE_USB_2_0XXX DLT_USB_2_0 USB 2.0, 1.1, or 1.0 > packet, beginning with a PID, as described by Chapter 8 "Protocol Layer" o

Re: [tcpdump-workers] Link-Layer Header Type request: USB 2.0

2019-07-22 Thread Guy Harris
So "USB 2.0" really means "USB 2.0", and we could describe this as something such as LINKTYPE_USB_2_0XXX DLT_USB_2_0 USB 2.0, 1.1, or 1.0 packet, beginning with a PID, as described by Chapter 8 "Protocol Layer" of the Universal Serial Bus Specification Revision 2.0. wit

Re: [tcpdump-workers] New link-type for Z-Wave serial interface

2019-07-22 Thread Mikhail Gusarov
Hello Guy, On 23 Jul 2019, at 3:43, Guy Harris wrote: So should we just say something such as LINKTYPE_Z_WAVE_SERIAL XXX DLT_Z_WAVE_SERIAL Serial frames transmitted between a host and a Z-Wave chip over an RS-232 or USB serial connection, as described in section 5 of the Z-Wave Serial API

Re: [tcpdump-workers] Link-Layer Header Type request: USB 2.0

2019-07-22 Thread Tomasz Moń
On Tue, Jul 23, 2019 at 3:59 AM Guy Harris wrote: > The issue isn't the hardware signals. The link layer protocols are so different that in order for USB 3.0 SuperSpeed devices to be compatible with USB 2.0 hosts, such device have to implement *both* USB 3.0 link layer and USB 2.0 link layer. USB

Re: [tcpdump-workers] Link-Layer Header Type request: USB 2.0

2019-07-22 Thread Guy Harris
On Jul 21, 2019, at 9:22 PM, Tomasz Moń wrote: > On Sun, Jul 21, 2019 at 10:47 PM Guy Harris wrote: >> It looks as if USB 3.1's packets are different from USB 2.0's packets, so >> this would be 2.0-specific. > > USB 3 operates on different hardware signals. USB 3 hubs do contain > USB 3 and US

Re: [tcpdump-workers] New link-type for Z-Wave serial interface

2019-07-22 Thread Guy Harris
On Jul 21, 2019, at 2:19 PM, Mikhail Gusarov wrote: > On 21 Jul 2019, at 23:07, Guy Harris wrote: > >> So a "garbage frame" would be any frame that begins with a value other than >> 0x06, 0x15, 0x18, or 0x01? > >> Is there any reason for whatever capture mechanism produces these packets >> no