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2017-09-06Introduce a VTY, factually turning OpenGGSN into an Osmocom programHarald Welte2-2/+4
Change-Id: I9613ca3436e77ea132c47f0096df7c5050d7e826
2017-09-05lib/tun: Mark internal helper functions 'static'Harald Welte1-3/+3
Change-Id: I53a8a89abb0080a39a153e9d3864c17b29aa193c
2017-09-05Remove __sun__ code that is unmaintainedHarald Welte1-259/+0
We haven nobody maintaining this platform, let's remove it. In fact, only Linux and FreeBSD are part of the jenkins build tests, so even Apple/MacOS is up for disposal. However, as it's more popular, let's keep the code. Change-Id: Id6b8179259bacade52c39f96e688f828eff164ac
2017-09-05lib/tun.c: Proper cleanup during tun_new() error pathsHarald Welte1-13/+32
Change-Id: I285be20df76774ac7258b6edb3d4f2d28703757d
2017-09-05lib/ippool: Move ippool_aton() out of ippool_new()Harald Welte2-19/+13
we rather pass the in46_prefix directly into ippool_new() Change-Id: Iadf6274e881a9bfc75eb41f9380f5ae2d8c92a0f
2017-09-05lib/ippool: Add back-pointer from pool member to poolHarald Welte2-0/+3
This allows us to remove pool members without having to keep a pointer to the pool around. Change-Id: I9042eb85989c5451d7894678eca110dd19e78002
2017-09-05lib/in46_addr: Avoid ASSERT() when in46a_ntop() is called on uninitialized ↵Harald Welte1-1/+8
address Change-Id: I42d41ec1370b9cc15d372b649d8e1bc78e76af9b
2017-09-05lib/in46_addr: Add 'struct in46_prefix' to represent addr + prefixHarald Welte2-0/+13
Change-Id: I797d105117e81951732bcfc2cc26a8d00fd69443
2017-09-05lib/in46_addr: Add in46a_ntoa() function, similar to inet_ntoa()Harald Welte2-0/+11
Change-Id: I752b7033a106a74dc219047da5c3a7ad3cd3602e
2017-09-05lib/tun: Add 'void *priv' pointer to tun_tHarald Welte1-0/+2
This allows the application to attach some private state to the tun device, such as the context from which it was created/allocated Change-Id: Ief43b9b5fab5830fa8e28362c795f88f0b4d353b
2017-09-05lib/tun: Add missing #include to net/if.h for IFNAMSIZHarald Welte1-0/+2
Change-Id: I979867d643c9fa912884fe55105333dbad39ab97
2017-08-11tun_new(): Fix array overflow in FreeBSD related codeHarald Welte1-1/+1
Change-Id: I096e3b614e82e402886163274cfcf9355bd57580
2017-08-11replace hand-coded tun_gifindex() with standard POSIX if_nametoindex()Harald Welte1-25/+3
Change-Id: I738472765ab09f530dcf071455e1bb4e6fb3f6e5
2017-08-11Support setting TUN device IPv6 address + prefixHarald Welte2-11/+119
As we can now have PDP contexts with IPv6 user IP payload, it is useful to extend the TUN related code to be able to configure the tun device IPv6 address + prefix length Change-Id: I899d21e52d02e0b8384af29ddd489ff19c8f2cf6
2017-08-11IPv6: in46_addr: OSMO_ASSERT() in case of unsupported callsHarald Welte1-0/+6
There's a bit of trickery with the ip_pool and it's "lengty=8" IPv6 prefix handling, let's make sure we don't accidentially call any support functions with addresses of wrong length. Change-Id: I444c190bdcd18780344e1f0dad4faf3bcf9da5a5
2017-08-11IPv6: Implement IPv6 prefix assignment via ICMPv6 router advertisementHarald Welte2-0/+6
The 3GPP specs are quite strange when it comes to how an IPv6 address or rather prefix is assigned to an IPv6 PDP context. The designated method for allocating the IPv6 address via the PDP EUA (End User Address) Information Element in the GTP signalling plane is *not* used to allocate the address/prefix. Instead, the EUA is used to allocate an "interface identifier" to the MS, which it the uses to derive its link-local source address to send a router solicitation. The GGSN subsequently answers witha router advertisement, advertising a single/64 prefix, whihcthe MS then uses to generate it's real IPv6 source address for subsequent communication. Change-Id: Icddf7d30e01d76a4784bcef5787b36f52f703a9f
2017-08-09ippool: Extend pool to work with /64 prefixesHarald Welte2-7/+12
In IPv6 GPRS, we actually don't want to allocate an individual v6 address (like in IPv4), but we want to allocate a prefix. The standard prefix lengh is 8 bytes, i.e. a /64 prefix. This patch extends the pool to be able to work with such v6 prefixes. Change-Id: I0cf700b6baf195a2e5fbea000531f801acaaa443
2017-08-09in46_addr: Add new function in46a_prefix_equal()Harald Welte2-0/+18
This function is used to compare an IPv6 address against another, using the smaller of the two prefix lengths. Change-Id: Ic993d8abdc90897cb55276f01ae3b8a5eadf5a0d
2017-08-09ggsn: Send proper errors in create_context_ind()Harald Welte2-8/+9
When we receive PDP context requests for unknown PDP types or if we run out of dynamic addresses, we need to inform the SGSN that PDP context creation failed. Change-Id: Ibf199c1726130d27c8f80230b30ee51101c93b06
2017-08-09IPv6 support for user IPHarald Welte2-0/+65
This patch enables the use of IPv6 PDP contexts. The phone will have to request an IPv6 End-user-Address, and the GGSN will have to be configured for an IPv6 pool. The outer transport-layer IP between SGSN and GGSN must still be IPv4, it is not modified by this patch Change-Id: I22c3bf32a98e5daf99d6eaeac8c9f95cc7574774
2017-08-09ippool_new(): const-ify input argumentsHarald Welte2-2/+2
Change-Id: If3e53584e8c9c1f06bba4c183c9fd65fae913904
2017-08-09lib/tun.h: Remove non-endian-safe redefinition of IP headerHarald Welte1-15/+25
We can simply use 'struct iphdr' from netinet/ip.h to achieve the same goal (and be portable). Change-Id: Ieece22e127dc14a7ffdc3b05656628989ad00b32
2017-08-09ippool: Add IPv6 support to IP pool implementationHarald Welte5-124/+317
Extend the IP pool implementation to be able to manage both pools of 32bit addresses (IPv4) as well as pools of 128bit addresses (IPv6) Change-Id: Ib98cc4bf634d6be9a7bf8c03a24e629455fcafc8
2016-05-12gtp: fix several compilation warningsPablo Neira Ayuso1-1/+0
CC gtpie.lo gtpie.c: In function 'gtpie_encaps': gtpie.c:437:22: warning: variable 'm' set but not used [-Wunused-but-set-variable] union gtpie_member *m; ^ gtpie.c: In function 'gtpie_encaps2': gtpie.c:537:22: warning: variable 'm' set but not used [-Wunused-but-set-variable] union gtpie_member *m; ^ lookup.c: In function ‘lookup’: lookup.c:40:24: warning: typedef ‘ub1’ locally defined but not used [-Wunused-local-typedefs] typedef unsigned char ub1; /* unsigned 1-byte quantities */ ^ Still one compilation warning left in cmdline.c, but that code is autogenerated.
2015-05-02openggsn: Check return codes and take error paths on failure.Michael McTernan1-3/+16
Return early when socket() returns -1, and check return codes where indicated by some TODOs. This removes 2 TODOs and fixes a compiler warning about assignment to a variable which then isn't used. Signed-off-by: Michael McTernan <mike.mcternan@wavemobile.com>
2014-12-23lib: Speculatively add libosmocore cflags to the libHolger Hans Peter Freyther1-1/+1
2014-12-04logging: Switch to using libosmocore logging for all the codeHolger Hans Peter Freyther6-124/+120
2014-12-04syserr: Remove unused error packet logging codeHolger Hans Peter Freyther2-44/+0
2014-03-23cli: Introduce a logfile command to log errors to a fileHolger Hans Peter Freyther2-4/+25
The evolution would be to introduce libosmocore and start using the logging framework. But even then we can map this option to the file target. Fixes: SYS#263
2012-11-05Remove out-of-bounds writeTobias Engel1-1/+0
This removes an out-of-bounds write. The whole statement can simply be removed since snprintf already adds the trailing 0 byte.
2011-11-02Convert all code to Linux coding styleHarald Welte11-2038/+2001
After so many years of silence, we don't expect the original author to return to the project. To make things a bit simpler for us, we convert the coding style to what we are used to (Linux style). The conversion was made using the 'Lindent' script which is part of the Linux kernel.
2011-05-10properly build a library for the content of the lib directoryHarald Welte1-0/+7
2010-10-20IFNAMSIZ includes terminating 0Emmanuel Bretelle2-2/+2
http://www.delorie.com/gnu/docs/glibc/libc_308.html thus reverting devname to IFNAMSIZ and making sure (*tun)->devname[IFNAMSIZ-1] = 0; Signed-off-by: Emmanuel Bretelle <chantra@debuntu.org>
2010-10-20fixed compilation warning against gcc-4.4Emmanuel Bretelle1-10/+19
* Change arguments of tun_gifindex from: int tun_gifindex(struct tun_t *this, int *index) to int tun_gifindex(struct tun_t *this, __u32 *index) solves: ../lib/tun.c: In function ‘tun_addaddr’: ../lib/tun.c:265: warning: pointer targets in passing argument 2 of ‘tun_gifindex’ differ in signedness ../lib/tun.c:88: note: expected ‘int *’ but argument is of type ‘__u32 *’ * handle system return code and returns -1 if system failed solves: ../lib/tun.c: In function ‘tun_runscript’: ../lib/tun.c:895: warning: ignoring return value of ‘system’, declared with attribute warn_unused_result * do not dereference a pointer cast and use it as an lvalue see http://www.mail-archive.com/svn-commits@lists.digium.com/msg50931.html solves: ../lib/tun.c: In function ‘tun_route’: ../lib/tun.c:533: warning: dereferencing pointer ‘({anonymous})’ does break strict-aliasing rules ../lib/tun.c:533: note: initialized from here ../lib/tun.c:534: warning: dereferencing pointer ‘({anonymous})’ does break strict-aliasing rules ../lib/tun.c:534: note: initialized from here ../lib/tun.c:535: warning: dereferencing pointer ‘({anonymous})’ does break strict-aliasing rules ../lib/tun.c:535: note: initialized from here ../lib/tun.c: In function ‘tun_setaddr’: ../lib/tun.c:435: warning: dereferencing pointer ‘({anonymous})’ does break strict-aliasing rules ../lib/tun.c:435: note: initialized from here ../lib/tun.c:452: warning: dereferencing pointer ‘({anonymous})’ does break strict-aliasing rules ../lib/tun.c:452: note: initialized from here ../lib/tun.c:465: warning: dereferencing pointer ‘({anonymous})’ does break strict-aliasing rules ../lib/tun.c:465: note: initialized from here Signed-off-by: Emmanuel Bretelle <chantra@debuntu.org>
2010-10-20Set tun devname to IFNAMESIZ+1 to avoid warningEmmanuel Bretelle1-1/+1
Relevant output from make: ../lib/tun.c: In function ‘tun_new’: ../lib/tun.c:688: warning: array subscript is above array bounds Caused by assignement: (*tun)->devname[IFNAMSIZ] = 0; while devname defined as: char devname[IFNAMSIZ]; Signed-off-by: Emmanuel Bretelle <chantra@debuntu.org>
2010-10-20Move common sgsnemu/ggsn files to directory "lib"Emmanuel Bretelle11-0/+3222
Some files like in sgsnemu and ggsn directory where exactly the same. They are now moved to the same directory for easier maintenance Signed-off-by: Emmanuel Bretelle <chantra@debuntu.org>
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