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Revert "zebra: unexpose label-manager util-funcs as static"
This reverts commit d3d9639d9a2251aa519b5399706ce816982001a1.
Signed-off-by: Pat Ruddy <pat@voltanet.io>
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Following functions which is a piece of label-maanager implementation
isn't called from out side of its file. And all lines of label-manager
are coded on zebra/label_manager.c at this time. So these functions
should be unexposed.
Functions:
- create_label_chunk
- assign_label_chunk
- delete_label_chunk
- release_label_chunk
Signed-off-by: Hiroki Shirokura <slank.dev@gmail.com>
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Use the zapi client session id in the label manager apis;
use the client struct directly in some code. Assign a session
id to ldpd's sync LM zapi session.
Signed-off-by: Mark Stapp <mjs@voltanet.io>
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Signed-off-by: Lou Berger <lberger@labn.net>
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in order to both streamline the code and allow users to
define their own specialized versions of the LM api handlers,
define hooks for the 4 main primitives offered by the label
manager (i.e. connect, disconnect, get_chunk and release_chunk),
and have the existing code be run in response to a hook_call.
Additionally, have the responses to the requesting daemon be
callable from an external API.
Note that the proxy version of the label manager was a source of
issues and hardly used in practice. With the new hooks, users with
more complex requirements can simply plug in their own code to
handle label distribution remotely, so there is no longer a reason
to maintain this code.
Signed-off-by: Emanuele Di Pascale <emanuele@voltanet.io>
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For SRGB, we need to support chunk requests starting at a
specific point in the label space, rather than just asking
for any sufficiently large chunk. To this purpose, we extend
the label manager api to request a chunk with a base value;
if the base is set to 0, the label manager will behave as it
currently does, i.e. fetching the first free chunk big enough
to satisfy the request.
update all the existing calls to get chunks from the label
manager so that they use MPLS_LABEL_BASE_ANY as the base
for the requested chunk
Signed-off-by: Emanuele Di Pascale <emanuele@voltanet.io>
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Signed-off-by: Emanuele Di Pascale <emanuele@voltanet.io>
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Signed-off-by: Fredi Raspall <fredi@voltanet.io>
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In a prior refactor, label manager proxy functionality
was broken in two places:
1) in function relay_response_back(), "dst" stream was
accidentally replaced by "src".
2) in zread_relay_label_manager_request(), src was set to point
to a global struct stream *ibuf that was not used/initialized
anywhere.
Signed-off-by: Fredi Raspall <fredi@voltanet.io>
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zserv.c was using hardcoded callbacks to clean up various components
when a client disconnected. Ergo zserv.c had to know about all these
unrelated components that it should not care about. We have hooks now,
let's use the proper thing instead.
Signed-off-by: Quentin Young <qlyoung@cumulusnetworks.com>
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zserv.c has become something of a dumping ground for everything vaguely
related to ZAPI and really needs some love. This change splits out the
code fo building and consuming ZAPI messages into a separate source
file, leaving the actual session and client lifecycle code in zserv.c.
Unfortunately since the #include situation in Zebra has not been paid
much attention I was forced to fix the headers in a lot of other source
files. This is a net improvement overall though.
Signed-off-by: Quentin Young <qlyoung@cumulusnetworks.com>
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This commit is connecting the table manager with remote daemons by
handling the queries.
As the function is similar in many points with label allocator, a
function has been renamed.
Signed-off-by: Philippe Guibert <philippe.guibert@6wind.com>
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The following types are nonstandard:
- u_char
- u_short
- u_int
- u_long
- u_int8_t
- u_int16_t
- u_int32_t
Replace them with the C99 standard types:
- uint8_t
- unsigned short
- unsigned int
- unsigned long
- uint8_t
- uint16_t
- uint32_t
Signed-off-by: Quentin Young <qlyoung@cumulusnetworks.com>
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indent.py `git ls-files | pcregrep '\.[ch]$' | pcregrep -v '^(ldpd|babeld|nhrpd)/'`
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
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Conflicts:
ldpd/lde.c
zebra/label_manager.c
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
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To avoid blocking zebra when it's acting as a proxy for an external
label manager.
Besides:
Fix get chunk reconnection. Socket was still being destroyed on failure,
so next attempt would never work.
Filter out unwanted messages in lm sync sock.
Until LDE client sends ZEBRA_LABEL_MANAGER_CONNECT message, zserv
doesn't know which kind of client it is, so it might enqueue unwanted
messages like interface add, interface up, etc. Changes in this commit
discard those messages in the client side in case they arrive before the
expected response.
Change function name for zclient_connect in label manager to avoid
confusion with zclient one.
Signed-off-by: ßingen <bingen@voltanet.io>
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The FSF's address changed, and we had a mixture of comment styles for
the GPL file header. (The style with * at the beginning won out with
580 to 141 in existing files.)
Note: I've intentionally left intact other "variations" of the copyright
header, e.g. whether it says "Zebra", "Quagga", "FRR", or nothing.
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
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Label Manager allows to share MPLS label space among different
daemons. Each daemon can request a chunk of consecutive labels and
release it if it doesn't need them anymore. Label Manager stores the
daemon protocol and instance to identify the owner client. It uses them
to perform garbage collection, releasing all label chunks from a client
when it gets disconnected or reconnected.
Additionally, every client can request that the chunk is never garbage
collected. In that case client has the responsibility to release
non-used labels.
Zebra can host the label manager itself (if no -l param is provided) or
connect to an external one using zserv/zclient (providing its address
with -l param).
Client code is in lib/zclient.c, but currently only LDP is using it.
TODO: Allow for custom ranges requests, i.e., specify the start label
besides the chunk.
TODO: Release labels from LDP.
Signed-off-by: Bingen Eguzkitza <bingen@voltanet.io>
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