Up until now, the code has always fetched the time stamp immediately
after transmitting a message. However, a transparent clock will want
to forward a given incoming message out all egress ports with as
little delay as possible, in order to minimize the residence time of
the message within the switch.
This patch adds a new transmit mode for event messages that will be
used to signal the new behavior.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Originally the 'event' parameter to transport_send() was a single
Boolean flag. Over time, we grew an enumerated list of event
flavors, but the function signatures were never updated. This patch
changes the methods to use the proper type.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
netdb.h pulls in a large chain of include files:
rpc/netdb.h
rpc/types.h
rpc/types.h re-defines TRUE/FALSE and does it in this way:
#ifndef FALSE
# define FALSE (0)
#endif
#ifndef TRUE
# define TRUE (1)
#endif
And this later causes build problems that appear in this way:
mipsel-linux-gnu-gcc -Wall -DVER=1.8 -D_GNU_SOURCE -DHAVE_CLOCK_ADJTIME
-DHAVE_POSIX_SPAWN -DHAVE_ONESTEP_SYNC -Os -pipe -mno-branch-likely
-mips32r2 -mtune=24kc -fno-caller-saves -Wno-unused-result
-D_FORTIFY_SOURCE=1 -Wl,-z,now -Wl,-z,relro
-I/home/florian/dev/openwrt/trunk/staging_dir/target-mipsel-unknown-linux-gnu_glibc/usr/include
-I/home/florian/dev/openwrt/trunk/staging_dir/target-mipsel-unknown-linux-gnu_glibc/include
-I/home/florian/dev/toolchains/stbgcc-4.8-1.5/usr/include
-I/home/florian/dev/toolchains/stbgcc-4.8-1.5/include
-DHAVE_CLOCK_ADJTIME -DHAVE_POSIX_SPAWN -DHAVE_ONESTEP_SYNC -c -o
udp.o udp.c
In file included from
/home/florian/dev/openwrt/trunk/staging_dir/target-mipsel-unknown-linux-gnu_glibc/usr/include/rpc/netdb.h:45:0,
from
/home/florian/dev/toolchains/stbgcc-4.8-1.5/mipsel-linux-gnu/sys-root/usr/include/netdb.h:32,
from udp.c:23:
pdt.h:25:7: error: expected identifier before '(' token
enum {FALSE, TRUE};
^
<builtin>: recipe for target 'udp.o' failed
Upon inspection, it does not appear that netdb.h is providing any useful
definition or declaration, so let's just remove its inclusion.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
In the last years there are several media streaming standards
evolving that are relying on PTP. These standards make requirements
about the DSCP priority of PTP messages. This patch introduces two
new configuration options 'dscp_event' and 'dscp_general' to address
that issue and to be able to set the DSCP priority separately for
PTP event messages and PTP general messages.
Signed-off-by: Henry Jesuiter <henry.jesuiter@alcnetworx.de>
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
The raw Ethernet transport code invented its own way of storing the MAC
address into our "struct address" data structure. However, this private
format is incompatible with the sockaddr_ll returned from the networking
stack. This patch converts the code to use the proper format.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Even if the caller provides the destination address, still the port must
depend on the passed 'event' value for correct delivery.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
This modifies all transports to use a new common address type, struct
address. This address is stored in a ptp_message for all received messages.
For sending, the "default" address is used with the default sending
functions, transport_send and transport_peer. The default address depends on
the transport; it's supposed to be the multicast address assigned by the
transport specification.
Later, a new transport_sendto function will be implemented that sends to the
address contained in the passed ptp_message.
Signed-off-by: Jiri Benc <jbenc@redhat.com>
Because of packet reordering that can occur in the network, in the
hardware, or in the networking stack, a follow up message can appear
to arrive in the application before the matching sync message. As this
is a normal occurrence, and the sequenceID message field ensures
proper matching, the ptp4l program accepts out of order packets.
This patch adds an additional check using the software time stamps
from the networking stack to verify that the sync message did arrive
first. This check is only useful if the sequence IDs generated by
the master might possibly be incorrect.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
In order to set the scope id, we will need to know the interface index
before sending, in some cases.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
It is safer and more correct to clear the addresses before use. The IPv6
fields flowinfo and scope_id in particular should not be set to random
values from the stack.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Richard Cochran
Hangbin Liu
Florian Fainelli
Jesuiter, Henry (ALC NetworX GmbH)
Miroslav Lichvar
Jiri Benc
Stephan Gatzka
Geoff Salmon