srvsvc: Announce [username] in NetShareEnum

This patch has two flaws: First, it does not cover api_RNetShareEnum()
for SMB1, and the second one is: To make this elegant, we would have
to restructure our share handling. It is really only listing shares
for which we have to pull in everything from smb.conf, registry,
usershares and potentially printers. What we should do is modify our
loadparm handling to only load share definitions on demand and for
listing shares handle all the potential sources specially. Add code
that walks the registry shares without adding them to our services
list and so on.

This patch is the quick&dirty way to fix the bug, the alternative
would be weeks or more. And hopefully nobody notices the SMB1
problem...

Bug: https://bugzilla.samba.org/show_bug.cgi?id=15062

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Wed May 18 17:42:20 UTC 2022 on sn-devel-184

(cherry picked from commit 04e0e02c6951e327130210e44deb87b9a303cdb3)

Autobuild-User(v4-16-test): Jule Anger <janger@samba.org>
Autobuild-Date(v4-16-test): Fri May 20 09:10:43 UTC 2022 on sn-devel-184

diff --git a/selftest/knownfail.d/netshareenum_user b/selftest/knownfail.d/netshareenum_user
deleted file mode 100644 (file)
index 5ad1a49..0000000
--- a/selftest/knownfail.d/netshareenum_user
+++ /dev/null
@@ -1 +0,0 @@
-.*samba3.blackbox.netshareenum_username.*
\ No newline at end of file

diff --git a/source3/rpc_server/srvsvc/srv_srvsvc_nt.c b/source3/rpc_server/srvsvc/srv_srvsvc_nt.c
index 54209e3e7b659a73f8d41178fa7f84d430c1aedc..0bd79b595a9dbd5425ef7e071d84fcc166835bfa 100644 (file)
--- a/source3/rpc_server/srvsvc/srv_srvsvc_nt.c
+++ b/source3/rpc_server/srvsvc/srv_srvsvc_nt.c
@@ -610,6 +610,9 @@ static WERROR init_srv_share_info_ctr(struct pipes_struct *p,
                                      uint32_t *total_entries,
                                      bool all_shares)
 {
+       struct dcesrv_call_state *dce_call = p->dce_call;
+       struct auth_session_info *session_info =
+               dcesrv_call_session_info(dce_call);
        const struct loadparm_substitution *lp_sub =
                loadparm_s3_global_substitution();
        uint32_t num_entries = 0;
@@ -622,6 +625,9 @@ static WERROR init_srv_share_info_ctr(struct pipes_struct *p,
        bool *allowed = 0;
        union srvsvc_NetShareCtr ctr;
        uint32_t resume_handle = resume_handle_p ? *resume_handle_p : 0;
+       const char *unix_name = session_info->unix_info->unix_name;
+       int existing_home = lp_servicenumber(unix_name);
+       int added_home = -1;
        WERROR ret = WERR_OK;
 
        DEBUG(5,("init_srv_share_info_ctr\n"));
@@ -631,9 +637,14 @@ static WERROR init_srv_share_info_ctr(struct pipes_struct *p,
        delete_and_reload_printers();
        load_usershare_shares(NULL, connections_snum_used);
        load_registry_shares();
-       num_services = lp_numservices();
        unbecome_root();
 
+       if (existing_home == -1) {
+               added_home = register_homes_share(unix_name);
+       }
+
+       num_services = lp_numservices();
+
         allowed = talloc_zero_array(ctx, bool, num_services);
        if (allowed == NULL) {
                goto nomem;
@@ -896,6 +907,9 @@ static WERROR init_srv_share_info_ctr(struct pipes_struct *p,
 nomem:
        ret = WERR_NOT_ENOUGH_MEMORY;
 done:
+       if (added_home != -1) {
+               lp_killservice(added_home);
+       }
        return ret;
 }