From a90cc2e147b0f6e429c4e5e3e4e42e00b01ec32c Mon Sep 17 00:00:00 2001 From: Hans Dedecker Date: Sun, 16 Feb 2020 21:27:42 +0100 Subject: [PATCH] dhcpv6-ia: avoid setting lifetime to infinite for static assignments Don't set the valid lifetime to infinite for static assignments but rather set it to the IA lifetime given to the client. This makes it possible to display the leasetime for static assigments and simplifies the code in several places Signed-off-by: Hans Dedecker --- src/dhcpv6-ia.c | 30 ++++++++++-------------------- 1 file changed, 10 insertions(+), 20 deletions(-) diff --git a/src/dhcpv6-ia.c b/src/dhcpv6-ia.c index d8187ff..836c111 100644 --- a/src/dhcpv6-ia.c +++ b/src/dhcpv6-ia.c @@ -529,7 +529,7 @@ static void managed_handle_pd_data(struct ustream *s, _unused int bytes_new) if (first && c->managed_size == 0) free_assignment(c); - else if (first && !(c->flags & OAF_STATIC)) + else if (first) c->valid_until = now + 150; } @@ -540,8 +540,7 @@ static void managed_handle_pd_done(struct ustream *s) struct ustream_fd *fd = container_of(s, struct ustream_fd, stream); struct dhcp_assignment *c = container_of(fd, struct dhcp_assignment, managed_sock); - if (!(c->flags & OAF_STATIC)) - c->valid_until = odhcpd_time() + 15; + c->valid_until = odhcpd_time() + 15; c->managed_size = 0; @@ -569,8 +568,7 @@ static bool assign_pd(struct interface *iface, struct dhcp_assignment *assign) ustream_write_pending(&assign->managed_sock.stream); assign->managed_size = -1; - if (!(assign->flags & OAF_STATIC)) - assign->valid_until = odhcpd_time() + 15; + assign->valid_until = odhcpd_time() + 15; list_add(&assign->head, &iface->ia_assignments); @@ -1252,9 +1250,7 @@ ssize_t dhcpv6_ia_handle_IAs(uint8_t *buf, size_t buflen, struct interface *ifac a->length = reqlen; a->peer = *addr; a->assigned = is_na && l ? l->hostid : reqhint; - /* Set valid time to 0 for static lease indicating */ - /* infinite lifetime otherwise current time */ - a->valid_until = l ? 0 : now; + a->valid_until = now; a->dhcp_free_cb = dhcpv6_ia_free_assignment; a->iface = iface; a->flags = (is_pd ? OAF_DHCPV6_PD : OAF_DHCPV6_NA); @@ -1334,9 +1330,8 @@ ssize_t dhcpv6_ia_handle_IAs(uint8_t *buf, size_t buflen, struct interface *ifac a->flags &= ~OAF_BOUND; a->flags |= OAF_TENTATIVE; - if (!(a->flags & OAF_STATIC)) - /* Keep tentative assignment around for 60 seconds */ - a->valid_until = now + 60; + /* Keep tentative assignment around for 60 seconds */ + a->valid_until = now + 60; } else if (assigned && ((hdr->msg_type == DHCPV6_MSG_SOLICIT && rapid_commit) || @@ -1378,20 +1373,15 @@ ssize_t dhcpv6_ia_handle_IAs(uint8_t *buf, size_t buflen, struct interface *ifac apply_lease(a, true); } } else if (hdr->msg_type == DHCPV6_MSG_RELEASE) { - if (a->flags & OAF_STATIC) { - apply_lease(a, false); - a->flags &= ~OAF_BOUND; - } - else - a->valid_until = now - 1; - + a->valid_until = now - 1; } else if ((a->flags & OAF_DHCPV6_NA) && hdr->msg_type == DHCPV6_MSG_DECLINE) { a->flags &= ~OAF_BOUND; - if (!(a->flags & OAF_STATIC)) { + if (!(a->flags & OAF_STATIC) || a->lease->hostid != a->assigned) { memset(a->clid_data, 0, a->clid_len); a->valid_until = now + 3600; /* Block address for 1h */ - } + } else + a->valid_until = now - 1; } } else if (hdr->msg_type == DHCPV6_MSG_CONFIRM) { if (ia_addr_present && !dhcpv6_ia_on_link(ia, a, iface)) { -- 2.25.1