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2017-12-17odhcpd: Replace strerror(errno) with %m formatRosen Penev
Saves a few bytes. Signed-off-by: Rosen Penev <rosenp@gmail.com>
2017-12-06dhcpv4: notify DHCP ACK and RELEASE via ubusHans Dedecker
If the ubus object has any subscription notify DHCP ACK and DHCP RELEASE events using ubus notifications. Signed-off-by: Borja Salazar <borja.salazar@fon.com> Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
2017-11-09treewide: rework handling of netlink eventsHans Dedecker
Rework the handling of netlink events by letting the different modules ndp, ra, dhcpv6 and dhcpv4 install netevent handlers. The installed netevent handlers are called by the netlink logic passing an event indication together with event data. Each netevent handler implements its own event logic; this makes the code more modular and less complex by moving all netlink code to netlink.c While at it rename ia_addr and ia_addr_len into addr6 and addr6_len respectively Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
2017-10-16treewide: add netlink fileHans Dedecker
First step in moving netlink code to netlink.c by moving netlink code from odhcpd.c to netlink.c Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
2017-10-13treewide: align function namingHans Dedecker
Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
2017-09-13dhcpv4: fix memset compile issueHans Dedecker
Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
2017-09-13dhcpv4: rework assignment lookupHans Dedecker
When receiving a DHCPv4 message use find_assignment_by_hwaddr to find an assignment as only one entry can be present in the assignment table for a given mac address. While at it pass requested address by the client as an uint32_t type to clean up the code. Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
2017-09-13dhcpv4: cleanup dhcpv4_test usageHans Dedecker
Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
2017-09-13dhcpv4: rework lease expire handling logicHans Dedecker
Don't rely on incoming DHCPv4 messages to trigger the lease expire detection logic but rather use a periodic timer which checks every second if a lease is expired Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
2017-09-13dhcpv4: force renew nonce authentication supportHans Dedecker
Support force renew nonce authentication support in the DHCPv4 server as described in RFC3203 and RFC6704. The interface uci arameter dhcpv4_forcereconf allows to supports DHCPv4 clients which support force renew without authentication. While at it align network byte order logic for simplicity. Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
2017-09-13dhcpv4: avoid segfault when there's no IPv4 prefixHans Dedecker
Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
2017-08-17dhcpv4: fix possible segfault when lease is not createdHans Dedecker
Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
2017-08-17dhcpv4: dhcpv4: move interface lease list insertion out of dhcpv4_assignHans Dedecker
Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
2017-08-07treewide: rework IPv4 address logicHans Dedecker
Align IPv4 address logic with IPv6 by caching per interface the assigned IPv4 addresses. This allows to get rid of different ioctl calls in the DHCPv4 logic to retrieve the IPv4 address and netmask in use by an interface. Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
2017-06-27config: rework code to get rid of IFNAMSIZ usageHans Dedecker
Get rid of IFNAMSIZE usage for interface name and ifname variables Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
2017-05-12dhcpv4: display two hex digits per octet in syslogLeon M. George
Signed-off-by: Leon M. George <leon@georgemail.eu>
2017-02-19treewide: simplify dhcp leasetime checkingHans Dedecker
Set dhcp leasetim to 43200 seconds for all interfaces independant if dhcpv4 is enabled for an interface. Minimum allowed leasetime is 60 seconds when parsing leastime configuration; this allows to clean up the awkward leasetime checks on different places in the code Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
2017-01-23treewide: rework prio of syslog messagesHans Dedecker
Rework prio of syslog messages allowing to filter out the relevant messages by setting the correct log level Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
2017-01-02dhcpv4: coding style fixesHans Dedecker
Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
2016-12-28dhcpv4: make dhcpv4_msg_to_string staticHans Dedecker
Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
2016-12-28dhcpv4: fix DHCPv4 hostname handlingHans Dedecker
Fix hostname not being reported as "-" in the DHCP statefile in case no hostname is reported by the DHCPv4 client (https://:wqgithub.com/openwrt/odhcpd/issues/94) Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
2016-12-27Limit lifetime of non-static leases in case of release and declineHans Dedecker
In case infinite leasetime is assigned to a non static DHCPv4/v6 lease override the infinite lifetime of the lease when either a DHCPv4/v6 decline or release is received. Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
2016-12-15Don't print non bound assignments in the state fileHans Dedecker
Set bound flag for DHCPv4 and DHCPv6 assignments when the IPv6/IPv4 address is leased to a client. This will prevent the printing of leases and hostname/IPv4/IPv6 address combinations in the state file for for which the IPv4/6 address has not been assigned. Also this will fix the printing of assignments which have been declined by the clients Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
2016-11-21dhcpv4: Adding DHCP client leasetime request supportHans Dedecker
Add support for DHCPv4 clients proposing a leasetime; proposed leasetime will be accepted if it does not exceed either the pool or configured lease leastime. Further rework the duplicated leasetime logic which was in place. Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
2016-11-21dhcpv4: Keep DHCPv4 assignment lifetime value in sync with assigned leasetimeHans Dedecker
Keep the valid_until assignment parameter in sync with the leasetime assigned to the DHCP client when handling DHCP request message. This guarantees the contents of the ubus dhcp ipv4leases valid parameter is in sync with the client leasetime Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
2016-11-21config: Support infinite as DHCP pool leasetime valueHans Dedecker
Add support for infinite leasetime value; this can be done by specifying "infinite" as leasetime value which is similar to dnsmasq infinite leasetime support. Specifying "infinite" as leasetime is valid for both the host and dhcp uci sections. A DHCPv4/DHCPv6 assignment is now considered infinite if valid_unil holds the value 0. Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
2016-05-19Add per-host leasetime supportSteven Barth
Patch by Daniel Dickinson Signed-off-by: Steven Barth <steven@midlink.org>
2015-08-20Revert "RFC: dhcpv4 support openwrt alias ip addr"Steven Barth
2015-06-22dhcpv4: add ifdef ubus for dhcp4 ipPatrick Grimm
Signed-off-by: Patrick Grimm <patrick@lunatiki.de>
2015-06-19dhcpv4: add in_addr dhcpv4_mask and in_addr dhcpv4_addr to struct interfacePatrick Grimm
Signed-off-by: Patrick Grimm <patrick@lunatiki.de>
2015-06-18dhcpv4: fix unitialization of maskPatrick Grimm
Signed-off-by: Patrick Grimm <patrick@lunatiki.de>
2015-06-18dhcpv4: fix char ubus_get_address4 int ubus_get_mask4 functionPatrick Grimm
Signed-off-by: Patrick Grimm <patrick@lunatiki.de>
2015-06-15dhcpv4: use iface-namePatrick Grimm
Signed-off-by: Patrick Grimm <patrick@lunatiki.de>
2015-06-15dhcpv4: remove comment code linesPatrick Grimm
Signed-off-by: Patrick Grimm <patrick@lunatiki.de>
2015-06-15dhcpv4: use ubus for ipv4 dhcp range calculationPatrick Grimm
Signed-off-by: Patrick Grimm <patrick@lunatiki.de>
2015-05-11dhcpv4: remove invalid free()Steven Barth
Signed-off-by: Steven Barth <steven@midlink.org>
2015-04-14Fix potential invalid memory accessSteven Barth
2015-02-23DHCPv4: Compile fix on 64bit Debian.Markus Stenberg
2014-10-22dhcpv4_assign: rework the assignment logicChristian Mehlis
2014-10-21dhcpv4_assign: try 100 times to find a IPChristian Mehlis
This is what the comment on the loop is saying. Also change the srand comment to match to the actual code.
2014-08-23odhcpd: don't kill static lease entriesSteven Barth
2014-08-19dhcpv4: fix manual dhcp-rangesSteven Barth
2014-08-18dhcpv4: log reply in a more precise wayChristian Mehlis
2014-08-18dhcpv4: send NAK to broacast addressChristian Mehlis
2014-08-18dhcpv4: added more commentsChristian Mehlis
2014-08-12Merge pull request #22 from mehlis/log-dhcp4-eventssbyx
dhcpv4: log requests and replies to syslog
2014-08-12Merge pull request #21 from mehlis/fix-nak-by-doing-valid-replysbyx
dhcpv4: offer a valid configuration with DHCP NAK
2014-08-12dhcpv4: offer a valid configuration with DHCP NAKChristian Mehlis
On network change the client requests a non valid configuration. In this case we have to reply with a DHCP NAK. But this NAK can include a valid configuration like an ACK does. With this change iDevices and Androids can finish DHCP even with wrong configuration in first REQUEST with two packets and without any additional timeouts and round trips.
2014-08-12dhcpv4: implement router configuration optionChristian Mehlis
RFC 2132 defines: 3.5. Router Option The router option specifies a list of IP addresses for routers on the client's subnet. Routers SHOULD be listed in order of preference. The code for the router option is 3. The minimum length for the router option is 4 octets, and the length MUST always be a multiple of 4. Code Len Address 1 Address 2 +-----+-----+-----+-----+-----+-----+-----+-----+-- | 3 | n | a1 | a2 | a3 | a4 | a1 | a2 | ... +-----+-----+-----+-----+-----+-----+-----+-----+--
2014-08-12dhcpv4: log requests and replies to syslogChristian Mehlis
This change let odhcpd print dhcpv4 events to syslog.
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