network: make request_process_address() and friends take Link and corresponding object

This also renames e.g. request_process_address() -> address_process_request().

Also, this drops type checks such as `assert(req->type == REQUEST_TYPE_ADDRESS)`,
as in the later commits, the function of processing request, e.g.
`address_process_request()`, will be assigned to the Request object when
it is created. And the request type will be used to distinguish and to
avoid deduplicating requests which do not have any assigned objects,
like REQUEST_TYPE_DHCP4_CLIENT. Hence, the type checks in process functions
are mostly not necessary and redundant.

This is mostly cleanups and preparation for later commits, and should
not change any behavior.

1 files changed, 4 insertions, 6 deletions

diff --git a/src/network/networkd-ipv6-proxy-ndp.c b/src/network/networkd-ipv6-proxy-ndp.c
index 5844273be9..def456c9aa 100644
--- a/src/network/networkd-ipv6-proxy-ndp.c
+++ b/src/network/networkd-ipv6-proxy-ndp.c
@@ -80,19 +80,17 @@ static int ipv6_proxy_ndp_address_configure(const struct in6_addr *address, Link
         return 0;
 }
 
-int request_process_ipv6_proxy_ndp_address(Request *req) {
-        Link *link;
+int ipv6_proxy_ndp_address_process_request(Request *req, Link *link, struct in6_addr *address) {
         int r;
 
         assert(req);
-        assert(req->ipv6_proxy_ndp);
-        assert(req->type == REQUEST_TYPE_IPV6_PROXY_NDP);
-        assert_se(link = req->link);
+        assert(link);
+        assert(address);
 
         if (!link_is_ready_to_configure(link, false))
                 return 0;
 
-        r = ipv6_proxy_ndp_address_configure(req->ipv6_proxy_ndp, link, req);
+        r = ipv6_proxy_ndp_address_configure(address, link, req);
         if (r < 0)
                 return log_link_warning_errno(link, r, "Failed to configure IPv6 proxy NDP address: %m");