Update client state tracking in the gotd parent process.
 
The session process takes over the old state definitions under
a new name ("session state"). The parent only needs to keep
track of whether a client has been granted access, so it only
uses two states: NEW, and ACCCESS_GRANTED which is set as soon
as the auth process has granted repository access and before
the session and repo_read/repo_write children are started.
 
Because 'gotctl info' can no longer observe the session state
remove support code for printing it.
 
diff ee0b2e502f3be1d01835e96bdcd38afed67429f7 5204723706760347c39e54a68ab9c434e0fecb06
commit - ee0b2e502f3be1d01835e96bdcd38afed67429f7
commit + 5204723706760347c39e54a68ab9c434e0fecb06
blob - dbb09cd4673bf340a19e12a3607758538bfefff2
blob + c325f57c4de7b7c6a9487f451080651916364add
--- gotctl/gotctl.c
+++ gotctl/gotctl.c
@@ -103,37 +103,6 @@ static const char *
 	return NULL;
 }
 
-static const char *
-get_state_name(enum gotd_client_state state)
-{
-	static char unknown_state[64];
-
-	switch (state) {
-	case GOTD_STATE_EXPECT_LIST_REFS:
-		return "list-refs";
-	case GOTD_STATE_EXPECT_CAPABILITIES:
-		return "expect-capabilities";
-	case GOTD_STATE_EXPECT_WANT:
-		return "expect-want";
-	case GOTD_STATE_EXPECT_REF_UPDATE:
-		return "expect-ref-update";
-	case GOTD_STATE_EXPECT_MORE_REF_UPDATES:
-		return "expect-more-ref-updates";
-	case GOTD_STATE_EXPECT_HAVE:
-		return "expect-have";
-	case GOTD_STATE_EXPECT_PACKFILE:
-		return "expect-packfile";
-	case GOTD_STATE_EXPECT_DONE:
-		return "expect-done";
-	case GOTD_STATE_DONE:
-		return "done";
-	}
-
-	snprintf(unknown_state, sizeof(unknown_state),
-	    "unknown state %d", state);
-	return unknown_state;
-}
-
 static const struct got_error *
 show_client_info(struct imsg *imsg)
 {
@@ -145,8 +114,7 @@ show_client_info(struct imsg *imsg)
 		return got_error(GOT_ERR_PRIVSEP_LEN);
 	memcpy(&info, imsg->data, sizeof(info));
 
-	printf("client UID %d, GID %d, protocol state '%s', ",
-	    info.euid, info.egid, get_state_name(info.state));
+	printf("client UID %d, GID %d, ", info.euid, info.egid);
 	if (info.session_child_pid)
 		printf("session PID %ld, ", (long)info.session_child_pid);
 	if (info.repo_child_pid)
blob - 56c227fb60619b289a5e2680330bf0651400bac8
blob + 390d403cdcb5e59c2799c5ebfea7918257bbfa92
--- gotd/gotd.c
+++ gotd/gotd.c
@@ -67,6 +67,11 @@ struct gotd_client {
 #define nitems(_a)	(sizeof((_a)) / sizeof((_a)[0]))
 #endif
 
+enum gotd_client_state {
+	GOTD_CLIENT_STATE_NEW,
+	GOTD_CLIENT_STATE_ACCESS_GRANTED,
+};
+
 struct gotd_client {
 	STAILQ_ENTRY(gotd_client)	 entry;
 	enum gotd_client_state		 state;
@@ -445,7 +450,6 @@ send_client_info(struct gotd_imsgev *iev, struct gotd_
 		iclient.repo_child_pid = proc->pid;
 	}
 
-	iclient.state = client->state;
 	if (client->session)
 		iclient.session_child_pid = client->session->pid;
 
@@ -542,7 +546,7 @@ start_client_authentication(struct gotd_client *client
 
 	log_debug("list-refs request from uid %d", client->euid);
 
-	if (client->state != GOTD_STATE_EXPECT_LIST_REFS)
+	if (client->state != GOTD_CLIENT_STATE_NEW)
 		return got_error_msg(GOT_ERR_BAD_REQUEST,
 		    "unexpected list-refs request received");
 
@@ -661,8 +665,7 @@ gotd_request(int fd, short events, void *arg)
 	}
 
 	if (err) {
-		if (err->code != GOT_ERR_EOF ||
-		    client->state != GOTD_STATE_EXPECT_PACKFILE)
+		if (err->code != GOT_ERR_EOF)
 			disconnect_on_error(client, err);
 	} else {
 		gotd_imsg_event_add(&client->iev);
@@ -714,7 +717,7 @@ recv_connect(uint32_t *client_id, struct imsg *imsg)
 
 	*client_id = iconnect.client_id;
 
-	client->state = GOTD_STATE_EXPECT_LIST_REFS;
+	client->state = GOTD_CLIENT_STATE_NEW;
 	client->id = iconnect.client_id;
 	client->fd = s;
 	s = -1;
@@ -957,7 +960,7 @@ connect_repo_child(struct gotd_client *client,
 	struct gotd_imsg_connect_repo_child ireq;
 	int pipe[2];
 
-	if (client->state != GOTD_STATE_EXPECT_LIST_REFS)
+	if (client->state != GOTD_CLIENT_STATE_ACCESS_GRANTED)
 		return got_error_msg(GOT_ERR_BAD_REQUEST,
 		    "unexpected repo child ready signal received");
 
@@ -1134,6 +1137,7 @@ gotd_dispatch_auth_child(int fd, short event, void *ar
 		err = gotd_imsg_recv_error(&client_id, &imsg);
 		break;
 	case GOTD_IMSG_ACCESS_GRANTED:
+		client->state = GOTD_CLIENT_STATE_ACCESS_GRANTED;
 		break;
 	default:
 		do_disconnect = 1;
@@ -1277,7 +1281,7 @@ gotd_dispatch_client_session(int fd, short event, void
 			err = gotd_imsg_recv_error(&client_id, &imsg);
 			break;
 		case GOTD_IMSG_CLIENT_SESSION_READY:
-			if (client->state != GOTD_STATE_EXPECT_LIST_REFS) {
+			if (client->state != GOTD_CLIENT_STATE_ACCESS_GRANTED) {
 				err = got_error(GOT_ERR_PRIVSEP_MSG);
 				break;
 			}
blob - 3c7194f856798d1eab7423b732b4dad29644e13e
blob + de4f9c2c78944e2a095e39c114c19e9baed240f5
--- gotd/gotd.h
+++ gotd/gotd.h
@@ -88,7 +88,7 @@ enum gotd_client_state {
 };
 TAILQ_HEAD(gotd_repolist, gotd_repo);
 
-enum gotd_client_state {
+enum gotd_session_state {
 	GOTD_STATE_EXPECT_LIST_REFS,
 	GOTD_STATE_EXPECT_CAPABILITIES,
 	GOTD_STATE_EXPECT_WANT,
@@ -229,7 +229,6 @@ struct gotd_imsg_info_client {
 	gid_t egid;
 	char repo_name[NAME_MAX];
 	int is_writing;
-	enum gotd_client_state state;
 	pid_t session_child_pid;
 	pid_t repo_child_pid;
 };
blob - a6b8f011af70edd6ca8e1dd6ffc0658788c67ad1
blob + a1e9bda45d13cafee15c71ea7364217a9a432442
--- gotd/session.c
+++ gotd/session.c
@@ -63,7 +63,7 @@ static struct gotd_session_client {
 } gotd_session;
 
 static struct gotd_session_client {
-	enum gotd_client_state		 state;
+	enum gotd_session_state		 state;
 	int				 is_writing;
 	struct gotd_client_capability	*capabilities;
 	size_t				 ncapa_alloc;