networkd: netdev - introduce vtable for netdev kinds

Split each netdev kind into its own .h/.c.

1 files changed, 170 insertions, 0 deletions

diff --git a/src/network/networkd-netdev.h b/src/network/networkd-netdev.h
new file mode 100644
index 0000000000..a523522887
--- /dev/null
+++ b/src/network/networkd-netdev.h
@@ -0,0 +1,170 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+  This file is part of systemd.
+
+  Copyright 2013 Tom Gundersen <teg@jklm.no>
+
+  systemd is free software; you can redistribute it and/or modify it
+  under the terms of the GNU Lesser General Public License as published by
+  the Free Software Foundation; either version 2.1 of the License, or
+  (at your option) any later version.
+
+  systemd is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#pragma once
+
+#include "networkd.h"
+#include "hashmap.h"
+#include "list.h"
+#include "set.h"
+#include "condition-util.h"
+#include "in-addr-util.h"
+
+typedef struct NetDevVTable NetDevVTable;
+
+typedef struct netdev_join_callback netdev_join_callback;
+
+struct netdev_join_callback {
+        sd_rtnl_message_handler_t callback;
+        Link *link;
+
+        LIST_FIELDS(netdev_join_callback, callbacks);
+};
+
+typedef enum NetDevKind {
+        NETDEV_KIND_BRIDGE,
+        NETDEV_KIND_BOND,
+        NETDEV_KIND_VLAN,
+        NETDEV_KIND_MACVLAN,
+        NETDEV_KIND_VXLAN,
+        NETDEV_KIND_IPIP,
+        NETDEV_KIND_GRE,
+        NETDEV_KIND_SIT,
+        NETDEV_KIND_VETH,
+        NETDEV_KIND_VTI,
+        NETDEV_KIND_DUMMY,
+        NETDEV_KIND_TUN,
+        NETDEV_KIND_TAP,
+        _NETDEV_KIND_MAX,
+        _NETDEV_KIND_INVALID = -1
+} NetDevKind;
+
+typedef enum NetDevState {
+        NETDEV_STATE_FAILED,
+        NETDEV_STATE_CREATING,
+        NETDEV_STATE_READY,
+        NETDEV_STATE_LINGER,
+        _NETDEV_STATE_MAX,
+        _NETDEV_STATE_INVALID = -1,
+} NetDevState;
+
+struct NetDev {
+        Manager *manager;
+
+        int n_ref;
+
+        char *filename;
+
+        Condition *match_host;
+        Condition *match_virt;
+        Condition *match_kernel;
+        Condition *match_arch;
+
+        char *description;
+        char *ifname;
+        char *ifname_peer;
+        char *user_name;
+        char *group_name;
+        size_t mtu;
+        struct ether_addr *mac;
+        struct ether_addr *mac_peer;
+        NetDevKind kind;
+
+        uint64_t vlanid;
+        uint64_t vxlanid;
+        int32_t macvlan_mode;
+        int32_t bond_mode;
+
+        int ifindex;
+        NetDevState state;
+
+        bool tunnel_pmtudisc;
+        bool learning;
+        bool one_queue;
+        bool multi_queue;
+        bool packet_info;
+
+        unsigned ttl;
+        unsigned tos;
+        unsigned char family;
+        union in_addr_union local;
+        union in_addr_union remote;
+        union in_addr_union group;
+
+        LIST_HEAD(netdev_join_callback, callbacks);
+};
+
+struct NetDevVTable {
+        /* fill in message to create netdev */
+        int (*fill_message_create)(NetDev *netdev, sd_rtnl_message *message);
+
+        /* fill in message to create netdev on top of a given link */
+        int (*fill_message_create_on_link)(NetDev *netdev, Link *link, sd_rtnl_message *message);
+
+        /* fill in message to enslave link by netdev */
+        int (*enslave)(NetDev *netdev, Link *link, sd_rtnl_message_handler_t callback);
+
+        /* create netdev, if not done via rtnl */
+        int (*create)(NetDev *netdev);
+
+        /* verify that compulsory configuration options were specified */
+        int (*config_verify)(NetDev *netdev, const char *filename);
+};
+
+extern const NetDevVTable * const netdev_vtable[_NETDEV_KIND_MAX];
+
+#define NETDEV_VTABLE(n) netdev_vtable[(n)->kind]
+
+int netdev_load(Manager *manager);
+void netdev_drop(NetDev *netdev);
+
+NetDev *netdev_unref(NetDev *netdev);
+NetDev *netdev_ref(NetDev *netdev);
+
+DEFINE_TRIVIAL_CLEANUP_FUNC(NetDev*, netdev_unref);
+#define _cleanup_netdev_unref_ _cleanup_(netdev_unrefp)
+
+int netdev_get(Manager *manager, const char *name, NetDev **ret);
+int netdev_set_ifindex(NetDev *netdev, sd_rtnl_message *newlink);
+int netdev_enslave(NetDev *netdev, Link *link, sd_rtnl_message_handler_t callback);
+int netdev_get_mac(const char *ifname, struct ether_addr **ret);
+int netdev_join(NetDev *netdev, Link *link, sd_rtnl_message_handler_t cb);
+
+const char *netdev_kind_to_string(NetDevKind d) _const_;
+NetDevKind netdev_kind_from_string(const char *d) _pure_;
+
+int config_parse_netdev_kind(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+
+/* gperf */
+const struct ConfigPerfItem* network_netdev_gperf_lookup(const char *key, unsigned length);
+
+/* Macros which append INTERFACE= to the message */
+
+#define log_full_netdev(level, netdev, fmt, ...) log_meta_object(level, __FILE__, __LINE__, __func__, "INTERFACE=", netdev->ifname, "%-*s: " fmt, IFNAMSIZ, netdev->ifname, ##__VA_ARGS__)
+#define log_debug_netdev(netdev, ...)       log_full_netdev(LOG_DEBUG, netdev, ##__VA_ARGS__)
+#define log_info_netdev(netdev, ...)        log_full_netdev(LOG_INFO, netdev, ##__VA_ARGS__)
+#define log_notice_netdev(netdev, ...)      log_full_netdev(LOG_NOTICE, netdev, ##__VA_ARGS__)
+#define log_warning_netdev(netdev, ...)     log_full_netdev(LOG_WARNING, netdev,## __VA_ARGS__)
+#define log_error_netdev(netdev, ...)       log_full_netdev(LOG_ERR, netdev, ##__VA_ARGS__)
+
+#define log_struct_netdev(level, netdev, ...) log_struct(level, "INTERFACE=%s", netdev->ifname, __VA_ARGS__)
+
+#define NETDEV(netdev) "INTERFACE=%s", netdev->ifname