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2019-04-02dirmngr: Improve domaininfo cache update algorithm.Werner Koch1-19/+106
* dirmngr/domaininfo.c (struct domaininfo_s): Add field keepmark. (insert_or_update): Implement new update algorithm. -- The old algorithm limited the length of a bucket chain by purging the last 50% or the entries. Thus the first domains entered into the cache were never purged. The new algorithm is a bit better: It also limits the chain length on overflow to 50% but tries to keep the entries indicating that a WKD is available in the cache. If there is still space to keep more, those which clearly do not support WKD are also kept. Signed-off-by: Werner Koch <[email protected]>
2018-11-13dirmngr: Support the new WKD draft with the openpgpkey subdomain.Werner Koch1-1/+1
* dirmngr/server.c (proc_wkd_get): Implement new openpgpkey subdomain method. Signed-off-by: Werner Koch <[email protected]>
2017-12-11dirmngr: Check for WKD support at session endWerner Koch1-0/+1
* dirmngr/domaininfo.c (insert_or_update): Copy the name. * dirmngr/misc.c (copy_stream): Allow arg OUT to be NULL. * dirmngr/server.c (set_error): Protect CTX. (dirmngr_status): Protect against missing ASSUAN_CTX. (dirmngr_status_help): Ditto. (dirmngr_status_printf): Ditto. (cmd_wkd_get): Factor code out to ... (proc_wkd_get): new func. Support silent operation with no CTX. (task_check_wkd_support): New. -- This finalizes the feature to efficiently cache WKD checks. If a standard WKD query returns no data, we queue a test to be run after the end of the session (so that we do not delay the calling client). This check tests whether the server responsible for the queried address has WKD at all enabled. The test is done by checking whether the "policy" file exists. We do not check the "submission-address" file because that is not necessary for the web key operation. The policy file is now required. Signed-off-by: Werner Koch <[email protected]> (cherry picked from commit d4e2302d8f4a1ff52d56da4f8e3a5d1c6303822d)
2017-12-11dirmngr: Limit the number of cached domains for WKD.Werner Koch1-8/+54
* dirmngr/domaininfo.c (MAX_DOMAINBUCKET_LEN): New. (insert_or_update): Limit the length of a bucket chain. (domaininfo_print_stats): Print just one summary line. Signed-off-by: Werner Koch <[email protected]> (cherry picked from commit 26f08343fbccdbaa177c3507a3c5e24a5cf94a2d)
2017-12-11dirmngr: Keep track of domains used for WKD queriesWerner Koch1-0/+244
* dirmngr/domaininfo.c: New file. * dirmngr/Makefile.am (dirmngr_SOURCES): Add file. * dirmngr/server.c (cmd_wkd_get): Check whether the domain is already known and tell domaininfo about the results. -- This adds a registry for domain information to eventually avoid useless queries for domains which do not support WKD. The missing part is a background task to check whether a queried domain supports WKD at all and to expire old entries. Signed-off-by: Werner Koch <[email protected]> (cherry picked from commit 65038e6852185c20413d8f6602218ee636413b77)
2017-11-14dirmngr: Check for WKD support at session endWerner Koch1-0/+1
* dirmngr/domaininfo.c (insert_or_update): Copy the name. * dirmngr/misc.c (copy_stream): Allow arg OUT to be NULL. * dirmngr/server.c (set_error): Protect CTX. (dirmngr_status): Protect against missing ASSUAN_CTX. (dirmngr_status_help): Ditto. (dirmngr_status_printf): Ditto. (cmd_wkd_get): Factor code out to ... (proc_wkd_get): new func. Support silent operation with no CTX. (task_check_wkd_support): New. -- This finalizes the feature to efficiently cache WKD checks. If a standard WKD query returns no data, we queue a test to be run after the end of the session (so that we do not delay the calling client). This check tests whether the server responsible for the queried address has WKD at all enabled. The test is done by checking whether the "policy" file exists. We do not check the "submission-address" file because that is not necessary for the web key operation. The policy file is now required. Signed-off-by: Werner Koch <[email protected]>
2017-11-14dirmngr: Limit the number of cached domains for WKD.Werner Koch1-8/+54
* dirmngr/domaininfo.c (MAX_DOMAINBUCKET_LEN): New. (insert_or_update): Limit the length of a bucket chain. (domaininfo_print_stats): Print just one summary line. Signed-off-by: Werner Koch <[email protected]>
2017-11-13dirmngr: Keep track of domains used for WKD queriesWerner Koch1-0/+244
* dirmngr/domaininfo.c: New file. * dirmngr/Makefile.am (dirmngr_SOURCES): Add file. * dirmngr/server.c (cmd_wkd_get): Check whether the domain is already known and tell domaininfo about the results. -- This adds a registry for domain information to eventually avoid useless queries for domains which do not support WKD. The missing part is a background task to check whether a queried domain supports WKD at all and to expire old entries. Signed-off-by: Werner Koch <[email protected]>