IFP: Add wildcard requests

Resolves:
    https://fedorahosted.org/sssd/ticket/2553

Can be used as:

dbus-send --print-reply --system --dest=org.freedesktop.sssd.infopipe \
        /org/freedesktop/sssd/infopipe/Users \
        org.freedesktop.sssd.infopipe.Users.ListByName \
        string:r\* uint32:10

dbus-send --print-reply --system --dest=org.freedesktop.sssd.infopipe \
        /org/freedesktop/sssd/infopipe/Groups \
        org.freedesktop.sssd.infopipe.Groups.ListByName \
        string:r\* uint32:10

dbus-send --print-reply --system --dest=org.freedesktop.sssd.infopipe \
        /org/freedesktop/sssd/infopipe/Users \
        org.freedesktop.sssd.infopipe.Users.ListByDomainAndName \
        string:ipaldap string:r\* uint32:10

dbus-send --print-reply --system --dest=org.freedesktop.sssd.infopipe \
        /org/freedesktop/sssd/infopipe/Groups \
        org.freedesktop.sssd.infopipe.Groups.ListByDomainAndName \
        string:ipaldap string:r\* uint32:10

By default the wildcard_limit is unset, that is, the request will return
all cached entries that match.

Reviewed-by: Pavel Březina <pbrezina@redhat.com>

1 files changed, 22 insertions, 0 deletions

diff --git a/src/responder/ifp/ifp_private.h b/src/responder/ifp/ifp_private.h
index 304e4dc53..43519de6f 100644
--- a/src/responder/ifp/ifp_private.h
+++ b/src/responder/ifp/ifp_private.h
@@ -44,6 +44,7 @@ struct ifp_ctx {
 
     struct sysbus_ctx *sysbus;
     const char **user_whitelist;
+    uint32_t wildcard_limit;
 };
 
 errno_t ifp_register_sbus_interface(struct sbus_connection *conn,
@@ -84,4 +85,25 @@ ifp_get_user_extra_attributes(TALLOC_CTX *mem_ctx, struct ifp_ctx *ifp_ctx);
 bool ifp_attr_allowed(const char *whitelist[], const char *attr);
 bool ifp_is_user_attr_allowed(struct ifp_ctx *ifp_ctx, const char *attr);
 
+/* Used for list calls */
+struct ifp_list_ctx {
+    struct sbus_request *sbus_req;
+    const char *filter;
+    uint32_t limit;
+
+    struct sss_domain_info *dom;
+    struct ifp_ctx *ctx;
+
+    const char **paths;
+    size_t path_count;
+};
+
+struct ifp_list_ctx *ifp_list_ctx_new(struct sbus_request *sbus_req,
+                                      struct ifp_ctx *ctx,
+                                      const char *filter,
+                                      uint32_t limit);
+
+size_t ifp_list_ctx_remaining_capacity(struct ifp_list_ctx *list_ctx,
+                                       size_t entries);
+
 #endif /* _IFPSRV_PRIVATE_H_ */