Pre-Submission Checklist

Commit message has the format required by CONTRIBUTING guide
Commits are split per component (core, individual modules, libs, utils, ...)
Each component has a single commit (if not, squash them into one commit)
No commits to README files for modules (changes must be done to docbook files
in doc/ subfolder, the README file is autogenerated)

Type Of Change

Small bug fix (non-breaking change which fixes an issue)
New feature (non-breaking change which adds new functionality)
Breaking change (fix or feature that would change existing functionality)

Checklist:

PR should be backported to stable branches
Tested changes locally
Related to issue #XXXX (replace XXXX with an open issue number)

Description

If Kamailio sends a 301/302, the current dset is added as Contact header automatically. The feature in this PR will optionally extend this Contact header with more information.

The path vector for each contact can be added as a Contact-uri Route header (rfc 3327 conformant).
The branch flags can be added as a Contact-header parameter (non-standard).

In addition, the get_redirects function is extended to optionally parse the new flags parameter. The Route header can be extracted from the r-uri in the script.

The new functionality must be enabled with module parameters, by default the behavior is unchanged.

You can view, comment on, or merge this pull request online at:

https://github.com/kamailio/kamailio/pull/1243

Commit Summary

core: Cleanup printing the dset
core: dset: Create Contacts header with path vector as Route header
core: dset: Create contacts with flags as header parameter
core modules/tm modules/sl: Make adding path and flags to redirected contacts optional
core: Increase MAX_REDIRECTION_LEN from 512 to 4096
uac_redirect: Parse Contact's "flags" header parameter into branch flags.

File Changes

M src/core/config.h (2)
M src/core/dset.c (252)
M src/core/dset.h (6)
M src/core/parser/contact/contact.c (2)
M src/core/parser/contact/contact.h (1)
M src/core/parser/parse_param.c (11)
M src/core/parser/parse_param.h (2)
M src/modules/pv/pv_core.c (2)
M src/modules/sl/doc/sl_params.xml (30)
M src/modules/sl/sl.c (1)
M src/modules/sl/sl_funcs.c (5)
M src/modules/sl/sl_funcs.h (2)
M src/modules/tm/doc/params.xml (30)
M src/modules/tm/t_reply.c (4)
M src/modules/tm/tm.c (1)
M src/modules/uac_redirect/doc/uac_redirect_admin.xml (40)
M src/modules/uac_redirect/rd_funcs.c (11)
M src/modules/uac_redirect/rd_funcs.h (2)
M src/modules/uac_redirect/uac_redirect.c (2)
M src/modules/xprint/xp_lib.c (2)

Patch Links:

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