ctld: Support multiple physical ports in a target

PR:		293076
Reported by:	Ken J. Thomson <thomsonk@yandex.com>
Reviewed by:	asomers
Fixes:		969876fcee ("ctld: parse config file independently of getting kernel info")
Sponsored by:	Chelsio Communications
Differential Revision:	https://reviews.freebsd.org/D55767

usr.sbin/ctld/conf.cc

@@ -404,9 +404,9 @@ target_set_auth_type(const char *type)
 }
 
 bool
-target_set_physical_port(const char *pport)
+target_add_physical_port(const char *pport)
 {
-	return (target->set_physical_port(pport));
+	return (target->add_physical_port(pport));
 }
 
 bool

usr.sbin/ctld/conf.h

@@ -83,11 +83,11 @@ bool	target_add_chap_mutual(const char *user, const char *secret,
 bool	target_add_initiator_name(const char *name);
 bool	target_add_initiator_portal(const char *addr);
 bool	target_add_lun(u_int id, const char *name);
+bool	target_add_physical_port(const char *pport);
 bool	target_add_portal_group(const char *pg_name, const char *ag_name);
 bool	target_set_alias(const char *alias);
 bool	target_set_auth_group(const char *name);
 bool	target_set_auth_type(const char *type);
-bool	target_set_physical_port(const char *pport);
 bool	target_set_redirection(const char *addr);
 bool	target_start_lun(u_int id);
 

usr.sbin/ctld/ctld.cc

@@ -1082,9 +1082,9 @@ kports::has_port(std::string_view name)
 }
 
 struct pport *
-kports::find_port(std::string_view name)
+kports::find_port(const std::string &name)
 {
-	auto it = pports.find(std::string(name));
+	auto it = pports.find(name);
 	if (it == pports.end())
 		return (nullptr);
 	return (&it->second);
@@ -1383,14 +1383,16 @@ target::set_auth_type(const char *type)
 }
 
 bool
-target::set_physical_port(std::string_view pport)
+target::add_physical_port(std::string_view pport)
 {
-	if (!t_pport.empty()) {
-		log_warnx("cannot set multiple physical ports for target "
-		    "\"%s\"", name());
-		return (false);
+	for (const auto &s : t_pports) {
+		if (s == pport) {
+			log_warnx("duplicate physical port \"%s\" for target "
+			    "\"%s\"", s.c_str(), name());
+			return (false);
+		}
 	}
-	t_pport = pport;
+	t_pports.emplace_back(pport);
 	return (true);
 }
 
@@ -2619,36 +2621,36 @@ conf::add_pports(struct kports &kports)
 	for (auto &kv : conf_targets) {
 		struct target *targ = kv.second.get();
 
-		if (!targ->has_pport())
-			continue;
+		for (const auto &pport : targ->pports()) {
+			ret = sscanf(pport.c_str(), "ioctl/%d/%d", &i_pp,
+			    &i_vp);
+			if (ret > 0) {
+				if (!add_port(kports, targ, i_pp, i_vp)) {
+					log_warnx("can't create new ioctl port "
+					    "for %s", targ->label());
+					return (false);
+				}
 
-		ret = sscanf(targ->pport(), "ioctl/%d/%d", &i_pp, &i_vp);
-		if (ret > 0) {
-			if (!add_port(kports, targ, i_pp, i_vp)) {
-				log_warnx("can't create new ioctl port "
-				    "for %s", targ->label());
-				return (false);
+				continue;
 			}
 
-			continue;
-		}
-
-		pp = kports.find_port(targ->pport());
-		if (pp == NULL) {
-			log_warnx("unknown port \"%s\" for %s",
-			    targ->pport(), targ->label());
-			return (false);
-		}
-		if (pp->linked()) {
-			log_warnx("can't link port \"%s\" to %s, "
-			    "port already linked to some target",
-			    targ->pport(), targ->label());
-			return (false);
-		}
-		if (!add_port(targ, pp)) {
-			log_warnx("can't link port \"%s\" to %s",
-			    targ->pport(), targ->label());
-			return (false);
+			pp = kports.find_port(pport);
+			if (pp == NULL) {
+				log_warnx("unknown port \"%s\" for %s",
+				    pport.c_str(), targ->label());
+				return (false);
+			}
+			if (pp->linked()) {
+				log_warnx("can't link port \"%s\" to %s, "
+				    "port already linked to some target",
+				    pport.c_str(), targ->label());
+				return (false);
+			}
+			if (!add_port(targ, pp)) {
+				log_warnx("can't link port \"%s\" to %s",
+				    pport.c_str(), targ->label());
+				return (false);
+			}
 		}
 	}
 	return (true);

usr.sbin/ctld/ctld.hh

@@ -381,17 +381,16 @@ struct target {
 	virtual ~target() = default;
 
 	bool has_alias() const { return !t_alias.empty(); }
-	bool has_pport() const { return !t_pport.empty(); }
 	bool has_redirection() const { return !t_redirection.empty(); }
 	const char *alias() const { return t_alias.c_str(); }
 	const char *name() const { return t_name.c_str(); }
 	const char *label() const { return t_label.c_str(); }
-	const char *pport() const { return t_pport.c_str(); }
 	bool private_auth() const { return t_private_auth; }
 	const char *redirection() const { return t_redirection.c_str(); }
 
 	struct auth_group *auth_group() const { return t_auth_group.get(); }
 	const std::list<port *> &ports() const { return t_ports; }
+	const std::list<std::string> &pports() const { return t_pports; }
 	const struct lun *lun(int idx) const { return t_luns[idx]; }
 
 	bool add_chap(const char *user, const char *secret);
@@ -403,12 +402,12 @@ struct target {
 	virtual bool add_initiator_portal(const char *) { return false; }
 	virtual bool add_lun(u_int, const char *) { return false; }
 	virtual bool add_namespace(u_int, const char *) { return false; }
+	bool add_physical_port(std::string_view pport);
 	virtual bool add_portal_group(const char *pg_name,
 	    const char *ag_name) = 0;
 	bool set_alias(std::string_view alias);
 	bool set_auth_group(const char *ag_name);
 	bool set_auth_type(const char *type);
-	bool set_physical_port(std::string_view pport);
 	bool set_redirection(const char *addr);
 	virtual struct lun *start_lun(u_int) { return nullptr; }
 	virtual struct lun *start_namespace(u_int) { return nullptr; }
@@ -433,8 +432,8 @@ protected:
 	std::string			t_label;
 	std::string			t_alias;
 	std::string			t_redirection;
-	/* Name of this target's physical port, if any, i.e. "isp0" */
-	std::string			t_pport;
+	/* Names of this target's physical ports, e.g. "isp0" */
+	std::list<std::string>		t_pports;
 	bool				t_private_auth = false;
 };
 
@@ -582,7 +581,7 @@ private:
 struct kports {
 	bool add_port(std::string &name, uint32_t ctl_port);
 	bool has_port(std::string_view name);
-	struct pport *find_port(std::string_view name);
+	struct pport *find_port(const std::string &name);
 
 private:
 	std::unordered_map<std::string, struct pport> pports;

usr.sbin/ctld/parse.y

@@ -774,7 +774,7 @@ target_port:	PORT STR
 	{
 		bool ok;
 
-		ok = target_set_physical_port($2);
+		ok = target_add_physical_port($2);
 		free($2);
 		if (!ok)
 			return (1);

usr.sbin/ctld/uclparse.cc

@@ -1255,7 +1255,7 @@ uclparse_target(const char *name, const ucl::Ucl &top)
 				return false;
 			}
 
-			if (!target_set_physical_port(obj.string_value().c_str()))
+			if (!target_add_physical_port(obj.string_value().c_str()))
 				return false;
 		}