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gssapi: credential store extensions (#451)

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Implement the GSS-API credential store API extensions defined by MIT here:

https://k5wiki.kerberos.org/wiki/Projects/Credential_Store_extensions

Note: we kill off gss_acquire_cred_ext() here. This was never a public API,
although mechanisms could have implemented it and I briefly used it in my
BrowserID prototype mechanism. gss_acquire_cred_ext_from() occupies the place
in the dispatch table where gss_acquire_cred_ext() used to, but this structure
was never visible outside Heimdal (i.e. it is only used by internal
mechanisms);

(Mechanisms that need to accept arbitrary key/value dictionaries from
applications should now implement gss_acquire_cred_from().)
This commit is contained in:
Luke Howard
2019-01-03 09:26:41 +11:00
committed by Nico Williams
parent a7d42cdf6b
commit e0bb9c10ca
39 changed files with 1289 additions and 1054 deletions
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33
lib/gssapi/test_add_store_cred.c
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@@ -117,8 +117,8 @@ main(int argc, char **argv)
gss_cred_id_t from_cred = GSS_C_NO_CREDENTIAL;
gss_cred_id_t to_cred = GSS_C_NO_CREDENTIAL;
gss_cred_id_t cred = GSS_C_NO_CREDENTIAL;
char *from_env;
char *to_env;
gss_key_value_element_desc from_elements, to_elements;
gss_key_value_set_desc from, to;
int optidx = 0;
setprogname(argv[0]);
@@ -141,22 +141,26 @@ main(int argc, char **argv)
if (argc > 2)
errx(1, "too many arguments");
if (asprintf(&from_env, "KRB5CCNAME=%s", argv[0]) == -1 || from_env == NULL)
err(1, "out of memory");
if (asprintf(&to_env, "KRB5CCNAME=%s", argv[1]) == -1 || to_env == NULL)
err(1, "out of memory");
from_elements.key = "ccache";
from_elements.value = argv[0];
from.count = 1;
from.elements = &from_elements;
putenv(from_env);
major = gss_add_cred(&minor, GSS_C_NO_CREDENTIAL, GSS_C_NO_NAME,
GSS_KRB5_MECHANISM, GSS_C_INITIATE, GSS_C_INDEFINITE,
GSS_C_INDEFINITE, &from_cred, NULL, NULL, NULL);
to_elements.key = "ccache";
to_elements.value = argv[1];
to.count = 1;
to.elements = &to_elements;
major = gss_add_cred_from(&minor, GSS_C_NO_CREDENTIAL, GSS_C_NO_NAME,
GSS_KRB5_MECHANISM, GSS_C_INITIATE,
GSS_C_INDEFINITE, GSS_C_INDEFINITE,
&from, &from_cred, NULL, NULL, NULL);
if (major != GSS_S_COMPLETE)
gss_err(1, major, minor, GSS_KRB5_MECHANISM,
"failed to acquire creds from %s", argv[0]);
putenv(to_env);
major = gss_store_cred(&minor, from_cred, GSS_C_INITIATE,
GSS_KRB5_MECHANISM, 1, 1, NULL, NULL);
major = gss_store_cred_into(&minor, from_cred, GSS_C_INITIATE,
GSS_KRB5_MECHANISM, 1, 1, &to, NULL, NULL);
if (major != GSS_S_COMPLETE)
gss_err(1, major, minor, GSS_KRB5_MECHANISM,
"failed to store creds into %s", argv[1]);
@@ -171,9 +175,6 @@ main(int argc, char **argv)
gss_err(1, major, minor, GSS_KRB5_MECHANISM,
"failed to acquire creds from %s", argv[1]);
(void) gss_release_cred(&minor, &cred);
putenv("KRB5CCNAME");
free(from_env);
free(to_env);
return 0;
}