diff options
Diffstat (limited to 'src/network/networkd-address-pool.c')
| -rw-r--r-- | src/network/networkd-address-pool.c | 171 |
1 files changed, 0 insertions, 171 deletions
diff --git a/src/network/networkd-address-pool.c b/src/network/networkd-address-pool.c deleted file mode 100644 index ebc6c9eb9e..0000000000 --- a/src/network/networkd-address-pool.c +++ /dev/null @@ -1,171 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2014 Lennart Poettering - - 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 "alloc-util.h" -#include "networkd-address-pool.h" -#include "networkd.h" -#include "set.h" -#include "string-util.h" - -int address_pool_new( - Manager *m, - AddressPool **ret, - int family, - const union in_addr_union *u, - unsigned prefixlen) { - - AddressPool *p; - - assert(m); - assert(ret); - assert(u); - - p = new0(AddressPool, 1); - if (!p) - return -ENOMEM; - - p->manager = m; - p->family = family; - p->prefixlen = prefixlen; - p->in_addr = *u; - - LIST_PREPEND(address_pools, m->address_pools, p); - - *ret = p; - return 0; -} - -int address_pool_new_from_string( - Manager *m, - AddressPool **ret, - int family, - const char *p, - unsigned prefixlen) { - - union in_addr_union u; - int r; - - assert(m); - assert(ret); - assert(p); - - r = in_addr_from_string(family, p, &u); - if (r < 0) - return r; - - return address_pool_new(m, ret, family, &u, prefixlen); -} - -void address_pool_free(AddressPool *p) { - - if (!p) - return; - - if (p->manager) - LIST_REMOVE(address_pools, p->manager->address_pools, p); - - free(p); -} - -static bool address_pool_prefix_is_taken( - AddressPool *p, - const union in_addr_union *u, - unsigned prefixlen) { - - Iterator i; - Link *l; - Network *n; - - assert(p); - assert(u); - - HASHMAP_FOREACH(l, p->manager->links, i) { - Address *a; - Iterator j; - - /* Don't clash with assigned addresses */ - SET_FOREACH(a, l->addresses, j) { - if (a->family != p->family) - continue; - - if (in_addr_prefix_intersect(p->family, u, prefixlen, &a->in_addr, a->prefixlen)) - return true; - } - - /* Don't clash with addresses already pulled from the pool, but not assigned yet */ - LIST_FOREACH(addresses, a, l->pool_addresses) { - if (a->family != p->family) - continue; - - if (in_addr_prefix_intersect(p->family, u, prefixlen, &a->in_addr, a->prefixlen)) - return true; - } - } - - /* And don't clash with configured but un-assigned addresses either */ - LIST_FOREACH(networks, n, p->manager->networks) { - Address *a; - - LIST_FOREACH(addresses, a, n->static_addresses) { - if (a->family != p->family) - continue; - - if (in_addr_prefix_intersect(p->family, u, prefixlen, &a->in_addr, a->prefixlen)) - return true; - } - } - - return false; -} - -int address_pool_acquire(AddressPool *p, unsigned prefixlen, union in_addr_union *found) { - union in_addr_union u; - - assert(p); - assert(prefixlen > 0); - assert(found); - - if (p->prefixlen > prefixlen) - return 0; - - u = p->in_addr; - for (;;) { - if (!address_pool_prefix_is_taken(p, &u, prefixlen)) { - _cleanup_free_ char *s = NULL; - int r; - - r = in_addr_to_string(p->family, &u, &s); - if (r < 0) - return r; - - log_debug("Found range %s/%u", strna(s), prefixlen); - - *found = u; - return 1; - } - - if (!in_addr_prefix_next(p->family, &u, prefixlen)) - return 0; - - if (!in_addr_prefix_intersect(p->family, &p->in_addr, p->prefixlen, &u, prefixlen)) - return 0; - } - - return 0; -} |