[krbdev.mit.edu #3761] combine kdc.conf, krb5.conf data in KDC programs

[Ken Raeburn via RT]

Forgot to make a ticket for this...

Especially after the DAL integration, we want the kdc.conf and krb5.conf
data to be considered together.  This patch changes most of the KDC/KDB
functions, including GSSAPI krb5 mechanism bits in kadmind, to add
kdc.conf (or $KRB5_KDC_PROFILE) to the standard list of config files,
and use the combined result.

This will change behavior in a few cases where config file entries were
put into the wrong file and thus used to be ignored.  It will also cause
the library to no longer flag as an error the absence of the KDC config
file.

Documentation not updated yet.

Revision 18009:
* lib/kadm5/alt_prof.c (kadm5_get_config_params): Replace filename and
envvar arguments with a flag indicating whether KDC config data should
be used.  Prototype and all callers changed.
(krb5_read_realm_params): Delete config file and env var arguments.
Prototype and all callers changed.

* lib/kadm5/admin.h (KADM5_CONFIG_PROFILE): Commented out.
(struct _kadm5_config_params): Delete field PROFILE.
* lib/kadm5/alt_prof.c (kadm5_get_config_params): Don't look at it.
(kadm5_free_config_params): Don't free it.
* kadmin/testing/tcl/util.t: Remove profile data from config params.
* kadmin/testing/util/tcl_kadm5.c (config_mask_flags): Deleted
KADM5_CONFIG_PROFILE entry.
(parse_config_params): Changed to require 20 parameters instead of 21.
* lib/kadm5/unit-test/api.2/init-v2.exp (test100): Deleted.

* lib/kadm5/alt_prof.c (krb5_aprof_init): Fetch the list of config files
from
the library and add the caller-indicated config file to the front of the
list.

* lib/kadm5/clnt/client_init.c (kadm5_init_krb5_context): New function.
* lib/kadm5/clnt/libkadm5clnt.exports: Export it.
* lib/kadm5/srv/server_init.c: Include k5-int.h, osconf.h, gssapiP_krb5.h.
(kadm5_init_krb5_context): New function.
* lib/kadm5/srv/libkadm5srv.exports: Export it.
* lib/kadm5/srv/Makefile.in (LOCAL_INCLUDES): Add gssapi directories.
* lib/kadm5/admin.h (kadm5_init_krb5_context): Declare it.
* kadmin/dbutil/kdb5_destroy.c (kdb5_destroy): Call kadm5_init_krb5_context
instead of krb5_init_context.
* kadmin/dbutil/dump.c (load_db): Likewise.
* kadmin/dbutil/kdb5_util.c (main): Likewise.
* kadmin/dbutil/kadm5_create.c (kadm5_create): Likewise.
* kadmin/dbutil/kdb5_stash.c (kdb5_stash): Likewise.
* kadmin/dbutil/loadv4.c (load_v4db): Likewise.
* kadmin/server/ovsec_kadmd.c (main): Likewise.
* kadmin/cli/kadmin.c (kadmin_startup): Likewise.
* kadmin/testing/util/tcl_ovsec_kadm.c (tcl_ovsec_kadm_init): Likewise.
* lib/kadm5/unit-test/lock-test.c (main): Likewise.
* lib/kadm5/unit-test/handle-test.c (main): Likewise.
* lib/kadm5/unit-test/randkey-test.c (main): Likewise.
* lib/kadm5/unit-test/setkey-test.c (main): Likewise.
* lib/kadm5/chpass_util.c (_kadm5_chpass_principal_util): Likewise.
* lib/kadm5/kadm_rpc_xdr.c (xdr_krb5_principal): Likewise.

* lib/krb5/os/init_os_ctx.c (add_kdc_config_file): New function.
(os_init_paths): Add new argument KDC; call add_kdc_config_file if true.
* lib/krb5/krb/init_ctx.c (krb5int_init_context_kdc): New function.
(init_common): Add new argument KDC, passed to krb5_os_init_context.
* lib/krb5/libkrb5.exports: Export krb5int_init_context_kdc.
* k5-int.h (krb5_os_init_context): Update decl.
* lib/kadm5/srv/server_init.c (kadm5_init): Call krb5int_init_context_kdc.
* krb524/krb524d.c (main): Likewise.
* lib/kadm5/unit-test/api.2/init-v2.exp: Don't run test 154 for error for
$KRB5_KDC_PROFILE file not present.

* lib/krb5/os/init_os_ctx.c (os_get_default_config_files): Rewrite KLL
test so
as not to confuse Emacs indentation support.

* lib/gssapi/krb5/init_sec_context.c (kg_kdc_flag_mutex, kdc_flag): New
variables.
(krb5_gss_init_context, krb5_gss_use_kdc_context): New functions.
* lib/gssapi/krb5/gssapiP_krb5.h (kg_kdc_flag_mutex): Declare.
(krb5_gss_init_context, krb5_gss_use_kdc_context): Declare.
(krb5_init_context): Define as macro to invoke krb5_gss_init_context for
now.
* lib/gssapi/gss_libinit.c (gssint_lib_init): Initialize the mutex.
(gssint_lib_fini): Destroy it.
* lib/gssapi/libgssapi_krb5.exports: Export krb5_gss_use_kdc_context.

* lib/kadm5/srv/server_init.c (kadm5_init): Don't complain if the config
files
specify an admin server, since we now look at krb5.conf as well.
* lib/kadm5/unit-test/api.2/init-v2.exp: Delete test test114 for bad server
params.

* plugins/kdb/db2/adb_openclose.c (osa_adb_init_db): Use
krb5int_init_context_kdc instead of krb5_init_context.
* kdc/rtest.c (main): Likewise.
* kdc/fakeka.c (main): Likewise.
* kdc/main.c (main, init_realm): Likewise.