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gss-token: implement -m to specify what mech to use.

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This commit is contained in:
Roland C. Dowdeswell
2020-10-08 18:32:26 +01:00
parent 4336c944e0
commit dcac4e1ff9
2 changed files with 44 additions and 1 deletions
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8
lib/gssapi/gss-token.1
View File

@@ -17,6 +17,7 @@
.Op Fl C Ar ccache
.Op Fl S Ar maxsize
.Op Fl c count
.Op Fl m mech
.Op Ar service@host
.Sh DESCRIPTION
.Nm
@@ -66,6 +67,13 @@ This flag only changes the behaviour when operating in initiator mode.
This is good for very basic benchmarking.
.It Fl l
loop indefinitely in acceptor mode.
.It Fl m Ar mech
specifies the GSS mechanism that will be used in initiator mode.
If a mechanism name of
.Do ? Dc
is specified, a list of supported mechanisms will be output and
.Nm
will exit.
.It Fl n
do not output the generated tokens.
.It Fl r

37
lib/gssapi/gss-token.c
View File

@@ -91,6 +91,7 @@
int Sflag = 0;
int nflag = 0;
gss_OID global_mech = GSS_C_NO_OID;
static char *
gss_mk_err(OM_uint32 maj_stat, OM_uint32 min_stat, const char *preamble)
@@ -339,7 +340,7 @@ initiate_one(gss_name_t service, int delegate, int negotiate)
}
maj = gss_init_sec_context(&min, GSS_C_NO_CREDENTIAL, &ctx,
service, GSS_C_NO_OID, flags, 0,
service, global_mech, flags, 0,
GSS_C_NO_CHANNEL_BINDINGS, &in, NULL, &out,
NULL, NULL);
@@ -548,6 +549,26 @@ bail:
return svc;
}
static void
print_all_mechs(void)
{
OM_uint32 maj, min;
gss_OID_set mech_set;
size_t i;
int ret = 0;
maj = gss_indicate_mechs(&min, &mech_set);
GBAIL("gss_indicate_mechs", maj, min);
for (i=0; i < mech_set->count; i++)
printf("%s\n", gss_oid_to_name(&mech_set->elements[i]));
maj = gss_release_oid_set(&min, &mech_set);
bail:
exit(ret);
}
static void
usage(int ecode)
{
@@ -574,6 +595,7 @@ main(int argc, char **argv)
int ret = 0;
int optidx = 0;
char *ccname = NULL;
char *mech = NULL;
struct getargs args[] = {
{ "help", 'h', arg_flag, &hflag, NULL, NULL },
{ "version", 0, arg_flag, &version_flag, NULL, NULL },
@@ -584,6 +606,7 @@ main(int argc, char **argv)
{ NULL, 'S', arg_integer, &Sflag, NULL, NULL },
{ NULL, 'c', arg_integer, &count, NULL, NULL },
{ NULL, 'l', arg_flag, &lflag, NULL, NULL },
{ NULL, 'm', arg_string, &mech, NULL, NULL },
{ NULL, 'n', arg_flag, &nflag, NULL, NULL },
{ NULL, 'r', arg_flag, &rflag, NULL, NULL },
};
@@ -602,6 +625,18 @@ main(int argc, char **argv)
argc -= optidx;
argv += optidx;
if (mech) {
if (mech[0] == '?' && mech[1] == '\0') {
print_all_mechs();
exit(0);
}
global_mech = gss_name_to_oid(mech);
if (!global_mech) {
fprintf(stderr, "Invalid mech \"%s\".\n", mech);
usage(1);
}
}
if (argc > 0)
service = import_service(*argv);