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res_stir_shaken: Added dialplan function and API call.

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Adds the "STIR_SHAKEN" dialplan function and an API call to add a
STIR_SHAKEN verification result to a channel. This information will be
held in a datastore on the channel that can later be queried through the
"STIR_SHAKEN" dialplan funtion to get information on STIR_SHAKEN results
including identity, attestation, and verify_result. Here are some
examples:

STIR_SHAKEN(count)
STIR_SHAKEN(0, identity)
STIR_SHAKEN(1, attestation)
STIR_SHAKEN(2, verify_result)

Getting the count can be used to iterate through the results and pull
information by specifying the index and the field you want to retrieve.

Change-Id: Ice6d52a3a7d6e4607c9c35b28a1f7c25f5284a82
This commit is contained in:
Ben Ford
2020-05-04 16:11:00 -05:00
committed by George Joseph
parent 0392a8e620
commit 035b463c93
3 changed files with 372 additions and 2 deletions
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21
include/asterisk/res_stir_shaken.h
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@@ -21,10 +21,31 @@
#include <openssl/evp.h>
#include <openssl/pem.h>
enum ast_stir_shaken_verification_result {
AST_STIR_SHAKEN_VERIFY_NOT_PRESENT, /*! No STIR/SHAKEN information was available */
AST_STIR_SHAKEN_VERIFY_SIGNATURE_FAILED, /*! Signature verification failed */
AST_STIR_SHAKEN_VERIFY_MISMATCH, /*! Contents of the signaling and the STIR/SHAKEN payload did not match */
AST_STIR_SHAKEN_VERIFY_PASSED, /*! Signature verified and contents match signaling */
};
struct ast_stir_shaken_payload;
struct ast_json;
/*!
* \brief Add a STIR/SHAKEN verification result to a channel
*
* \param chan The channel
* \param identity The identity
* \param attestation The attestation
* \param result The verification result
*
* \retval -1 on failure
* \retval 0 on success
*/
int ast_stir_shaken_add_verification(struct ast_channel *chan, const char *identity, const char *attestation,
enum ast_stir_shaken_verification_result result);
/*!
* \brief Verify a JSON STIR/SHAKEN payload
*