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Respect krb5_principal when impersonating #111

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merged 1 commit into from
Feb 11, 2025
Merged

Respect krb5_principal when impersonating #111

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21 changes: 19 additions & 2 deletions src/gp_creds.c
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Original file line number Diff line number Diff line change
Expand Up @@ -667,8 +667,24 @@ uint32_t gp_add_krb5_creds(uint32_t *min,
}
} else { /* impersonation */
switch (acquire_type) {
case ACQ_NORMAL:
ret_maj = gss_acquire_cred_from(&ret_min, GSS_C_NO_NAME,
case ACQ_NORMAL: {
struct gp_service *svc = gpcall->service;
gss_name_t host_principal = GSS_C_NO_NAME;

if (svc->krb5.principal) {
/* configuration dictates to use a specific name */
gss_buffer_desc const_buf;
const_buf.value = svc->krb5.principal;
const_buf.length = strlen(svc->krb5.principal) + 1;

ret_maj = gss_import_name(&ret_min, &const_buf,
discard_const(GSS_KRB5_NT_PRINCIPAL_NAME),
&host_principal);
if (ret_maj) {
goto done;
}
}
ret_maj = gss_acquire_cred_from(&ret_min, host_principal,
GSS_C_INDEFINITE,
&desired_mechs, GSS_C_BOTH,
&cred_store, &impersonator_cred,
Expand Down Expand Up @@ -714,6 +730,7 @@ uint32_t gp_add_krb5_creds(uint32_t *min,

input_cred = impersonator_cred;
break;
}
case ACQ_IMPNAME:
input_cred = in_cred;
break;
Expand Down