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Diffstat (limited to 'src/network/networkd-brvlan.c')
-rw-r--r--src/network/networkd-brvlan.c349
1 files changed, 0 insertions, 349 deletions
diff --git a/src/network/networkd-brvlan.c b/src/network/networkd-brvlan.c
deleted file mode 100644
index 18ecd86858..0000000000
--- a/src/network/networkd-brvlan.c
+++ /dev/null
@@ -1,349 +0,0 @@
-/***
- This file is part of systemd.
-
- Copyright (C) 2016 BISDN GmbH. All rights reserved.
-
- 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/>.
-***/
-
-#include <netinet/in.h>
-#include <linux/if_bridge.h>
-#include <stdbool.h>
-
-#include "alloc-util.h"
-#include "conf-parser.h"
-#include "netlink-util.h"
-#include "networkd-brvlan.h"
-#include "networkd.h"
-#include "parse-util.h"
-#include "vlan-util.h"
-
-static bool is_bit_set(unsigned bit, uint32_t scope) {
- assert(bit < sizeof(scope)*8);
- return scope & (1 << bit);
-}
-
-static inline void set_bit(unsigned nr, uint32_t *addr) {
- if (nr < BRIDGE_VLAN_BITMAP_MAX)
- addr[nr / 32] |= (((uint32_t) 1) << (nr % 32));
-}
-
-static int find_next_bit(int i, uint32_t x) {
- int j;
-
- if (i >= 32)
- return -1;
-
- /* find first bit */
- if (i < 0)
- return BUILTIN_FFS_U32(x);
-
- /* mask off prior finds to get next */
- j = __builtin_ffs(x >> i);
- return j ? j + i : 0;
-}
-
-static int append_vlan_info_data(Link *const link, sd_netlink_message *req, uint16_t pvid, const uint32_t *br_vid_bitmap, const uint32_t *br_untagged_bitmap) {
- struct bridge_vlan_info br_vlan;
- int i, j, k, r, done, cnt;
- uint16_t begin, end;
- bool untagged = false;
-
- assert(link);
- assert(req);
- assert(br_vid_bitmap);
- assert(br_untagged_bitmap);
-
- i = cnt = -1;
-
- begin = end = UINT16_MAX;
- for (k = 0; k < BRIDGE_VLAN_BITMAP_LEN; k++) {
- unsigned base_bit;
- uint32_t vid_map = br_vid_bitmap[k];
- uint32_t untagged_map = br_untagged_bitmap[k];
-
- base_bit = k * 32;
- i = -1;
- done = 0;
- do {
- j = find_next_bit(i, vid_map);
- if (j > 0) {
- /* first hit of any bit */
- if (begin == UINT16_MAX && end == UINT16_MAX) {
- begin = end = j - 1 + base_bit;
- untagged = is_bit_set(j - 1, untagged_map);
- goto next;
- }
-
- /* this bit is a continuation of prior bits */
- if (j - 2 + base_bit == end && untagged == is_bit_set(j - 1, untagged_map) && (uint16_t)j - 1 + base_bit != pvid && (uint16_t)begin != pvid) {
- end++;
- goto next;
- }
- } else
- done = 1;
-
- if (begin != UINT16_MAX) {
- cnt++;
- if (done && k < BRIDGE_VLAN_BITMAP_LEN - 1)
- break;
-
- br_vlan.flags = 0;
- if (untagged)
- br_vlan.flags |= BRIDGE_VLAN_INFO_UNTAGGED;
-
- if (begin == end) {
- br_vlan.vid = begin;
-
- if (begin == pvid)
- br_vlan.flags |= BRIDGE_VLAN_INFO_PVID;
-
- r = sd_netlink_message_append_data(req, IFLA_BRIDGE_VLAN_INFO, &br_vlan, sizeof(br_vlan));
- if (r < 0)
- return log_link_error_errno(link, r, "Could not append IFLA_BRIDGE_VLAN_INFO attribute: %m");
- } else {
- br_vlan.vid = begin;
- br_vlan.flags |= BRIDGE_VLAN_INFO_RANGE_BEGIN;
-
- r = sd_netlink_message_append_data(req, IFLA_BRIDGE_VLAN_INFO, &br_vlan, sizeof(br_vlan));
- if (r < 0)
- return log_link_error_errno(link, r, "Could not append IFLA_BRIDGE_VLAN_INFO attribute: %m");
-
- br_vlan.vid = end;
- br_vlan.flags &= ~BRIDGE_VLAN_INFO_RANGE_BEGIN;
- br_vlan.flags |= BRIDGE_VLAN_INFO_RANGE_END;
-
- r = sd_netlink_message_append_data(req, IFLA_BRIDGE_VLAN_INFO, &br_vlan, sizeof(br_vlan));
- if (r < 0)
- return log_link_error_errno(link, r, "Could not append IFLA_BRIDGE_VLAN_INFO attribute: %m");
- }
-
- if (done)
- break;
- }
- if (j > 0) {
- begin = end = j - 1 + base_bit;
- untagged = is_bit_set(j - 1, untagged_map);
- }
-
- next:
- i = j;
- } while(!done);
- }
- if (!cnt)
- return -EINVAL;
-
- return cnt;
-}
-
-static int set_brvlan_handler(sd_netlink *rtnl, sd_netlink_message *m, void *userdata) {
- Link *link = userdata;
- int r;
-
- assert(link);
-
- r = sd_netlink_message_get_errno(m);
- if (r < 0 && r != -EEXIST)
- log_link_error_errno(link, r, "Could not add VLAN to bridge port: %m");
-
- return 1;
-}
-
-int br_vlan_configure(Link *link, uint16_t pvid, uint32_t *br_vid_bitmap, uint32_t *br_untagged_bitmap) {
- _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL;
- int r;
- uint16_t flags;
- sd_netlink *rtnl;
-
- assert(link);
- assert(link->manager);
- assert(br_vid_bitmap);
- assert(br_untagged_bitmap);
- assert(link->network);
-
- /* pvid might not be in br_vid_bitmap yet */
- if (pvid)
- set_bit(pvid, br_vid_bitmap);
-
- rtnl = link->manager->rtnl;
-
- /* create new RTM message */
- r = sd_rtnl_message_new_link(rtnl, &req, RTM_SETLINK, link->ifindex);
- if (r < 0)
- return log_link_error_errno(link, r, "Could not allocate RTM_SETLINK message: %m");
-
- r = sd_rtnl_message_link_set_family(req, PF_BRIDGE);
- if (r < 0)
- return log_link_error_errno(link, r, "Could not set message family: %m");
-
- r = sd_netlink_message_open_container(req, IFLA_AF_SPEC);
- if (r < 0)
- return log_link_error_errno(link, r, "Could not open IFLA_AF_SPEC container: %m");
-
- /* master needs flag self */
- if (!link->network->bridge) {
- flags = BRIDGE_FLAGS_SELF;
- sd_netlink_message_append_data(req, IFLA_BRIDGE_FLAGS, &flags, sizeof(uint16_t));
- }
-
- /* add vlan info */
- r = append_vlan_info_data(link, req, pvid, br_vid_bitmap, br_untagged_bitmap);
- if (r < 0)
- return log_link_error_errno(link, r, "Could not append VLANs: %m");
-
- r = sd_netlink_message_close_container(req);
- if (r < 0)
- return log_link_error_errno(link, r, "Could not close IFLA_AF_SPEC container: %m");
-
- /* send message to the kernel */
- r = sd_netlink_call_async(rtnl, req, set_brvlan_handler, link, 0, NULL);
- if (r < 0)
- return log_link_error_errno(link, r, "Could not send rtnetlink message: %m");
-
- return 0;
-}
-
-static int parse_vid_range(const char *rvalue, uint16_t *vid, uint16_t *vid_end) {
- int r;
- char *p;
- char *_rvalue = NULL;
- uint16_t _vid = UINT16_MAX;
- uint16_t _vid_end = UINT16_MAX;
-
- assert(rvalue);
- assert(vid);
- assert(vid_end);
-
- _rvalue = strdupa(rvalue);
- p = strchr(_rvalue, '-');
- if (p) {
- *p = '\0';
- p++;
- r = parse_vlanid(_rvalue, &_vid);
- if (r < 0)
- return r;
-
- if (_vid == 0)
- return -ERANGE;
-
- r = parse_vlanid(p, &_vid_end);
- if (r < 0)
- return r;
-
- if (_vid_end == 0)
- return -ERANGE;
- } else {
- r = parse_vlanid(_rvalue, &_vid);
- if (r < 0)
- return r;
-
- if (_vid == 0)
- return -ERANGE;
- }
-
- *vid = _vid;
- *vid_end = _vid_end;
- return r;
-}
-
-int config_parse_brvlan_pvid(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) {
- Network *network = userdata;
- int r;
- uint16_t pvid;
- r = parse_vlanid(rvalue, &pvid);
- if (r < 0)
- return r;
-
- network->pvid = pvid;
- network->use_br_vlan = true;
-
- return 0;
-}
-
-int config_parse_brvlan_vlan(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) {
- Network *network = userdata;
- int r;
- uint16_t vid, vid_end;
-
- assert(filename);
- assert(section);
- assert(lvalue);
- assert(rvalue);
- assert(data);
-
- r = parse_vid_range(rvalue, &vid, &vid_end);
- if (r < 0) {
- log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse VLAN, ignoring: %s", rvalue);
- return 0;
- }
-
- if (UINT16_MAX == vid_end)
- set_bit(vid++, network->br_vid_bitmap);
- else {
- if (vid >= vid_end) {
- log_syntax(unit, LOG_ERR, filename, line, 0, "Invalid VLAN range, ignoring %s", rvalue);
- return 0;
- }
- for (; vid <= vid_end; vid++)
- set_bit(vid, network->br_vid_bitmap);
- }
- network->use_br_vlan = true;
- return 0;
-}
-
-int config_parse_brvlan_untagged(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) {
- Network *network = userdata;
- int r;
- uint16_t vid, vid_end;
-
- assert(filename);
- assert(section);
- assert(lvalue);
- assert(rvalue);
- assert(data);
-
- r = parse_vid_range(rvalue, &vid, &vid_end);
- if (r < 0) {
- log_syntax(unit, LOG_ERR, filename, line, r, "Could not parse VLAN: %s", rvalue);
- return 0;
- }
-
- if (UINT16_MAX == vid_end) {
- set_bit(vid, network->br_vid_bitmap);
- set_bit(vid, network->br_untagged_bitmap);
- } else {
- if (vid >= vid_end) {
- log_syntax(unit, LOG_ERR, filename, line, 0, "Invalid VLAN range, ignoring %s", rvalue);
- return 0;
- }
- for (; vid <= vid_end; vid++) {
- set_bit(vid, network->br_vid_bitmap);
- set_bit(vid, network->br_untagged_bitmap);
- }
- }
- network->use_br_vlan = true;
- return 0;
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-01 11:52:40 +0000