Commit Graph

456 Commits

Author SHA1 Message Date
Erik Ekman a9045705ba tun: Automatically attempt to use utun on mac
Once /dev/tunX has been tried without success
2021-01-21 17:40:22 +01:00
Erik Ekman 39356163d9 Formatting: Fix mixed use of tabs and spaces 2020-08-01 17:29:49 +02:00
Erik Ekman 9a041683be Formatting: Fix lines starting with spaces 2020-08-01 17:19:37 +02:00
Erik Ekman 8d2c86c73d Fix strncat size argument in send_handshake_query
Found by clang:
client.c:1276:26: warning: the value of the size argument in 'strncat' is too large, might lead to a buffer overflow [-Wstrncat-size]
        strncat(buf, topdomain, sizeof(buf) - strlen(buf));
                                ^~~~~~~~~~~~~~~~~~~~~~~~~
2020-07-25 15:45:24 +02:00
Erik Ekman b7b1082dc6 client: Stop passing static variable userid to local functions 2020-07-24 21:17:18 +02:00
Erik Ekman c399f915b7 Improve logging around getting server address 2020-07-24 21:01:38 +02:00
Erik Ekman bbb604db06 Use send_handshake_query inside send_lazy_switch 2020-07-24 20:49:39 +02:00
Erik Ekman ba90706429 Replace send_downenc_switch with send_handshake_query 2020-07-24 20:38:45 +02:00
Erik Ekman 9cba3299c4 Replace send_ip_request with send_handshake_query 2020-07-24 20:36:51 +02:00
Erik Ekman 5de13805d8 Replace send_codec_switch with send_handshake_query 2020-07-24 20:36:41 +02:00
Erik Ekman d74939d323 Add send_handshake_query helper function
Convert send_downenctest to use it.
Remove unused data/len args from send_downenctest.
2020-07-24 20:18:07 +02:00
Erik Ekman a8a20f570e Formatting: spaces around operators 2020-07-24 19:15:02 +02:00
Erik Ekman aeacfbc2c0 Formatting: No spaces after '(' or before ')' 2020-07-24 19:02:41 +02:00
Erik Ekman 15f12d0693 Formatting: Space between 'for' and parenthesis 2020-07-24 18:57:57 +02:00
Erik Ekman 19d0d1be64 Formatting: Space between 'if' and parenthesis 2020-07-24 18:56:30 +02:00
Erik Ekman 310aedac8e Formatting: no space before parenthesis in function call. 2020-07-24 18:51:05 +02:00
Erik Ekman cde0b7632d Set additional record count properly in NS reply
For when there is no IPv4 address to return.
2020-07-23 22:12:07 +02:00
Erik Ekman ec6a1ac308 Fix IPv4 address in replies to A or NS queries (github issue #38)
The destination field in struct query was changed from in_addr_t to
struct sockaddr_storage, wihtout updating the functions sending it
in src/dns.c.

Only add extra A answer for NS queries if destination refers to an
IPv4 address, and fail if trying to encode a reply to an A query
if destination is not IPv4.

This means NS requests received over IPv6 will not contain an address
and A requests will be ignored, unless the -n option is used, or the
www subdomain is requested which sets a fixed address (127.0.0.1).
2020-07-23 21:49:46 +02:00
Erik Ekman d8f3ac8971 Add helper function tun_uses_header()
Remove code duplication and hide some ifdefs
2020-07-03 17:06:14 +02:00
Erik Ekman 07b2978326 Only check for utun if tun_device was given
Fixes github issue #37 hopefully.
2020-07-03 16:53:30 +02:00
Erik Ekman 2032b44949 Look up external IP via DNS instead of HTTP
Use myip.opendns.com via their resolver.

The code is now TCP free again :)
2020-05-24 16:06:41 +02:00
Erik Ekman e8a4c66719 Clean up makefile 2020-05-24 14:12:40 +02:00
Erik Ekman 8379384d37 Improve usage/help text around finding external IP 2020-05-24 13:41:54 +02:00
Daniel Schaefer d2f671bdc7 Define searchpath for route with macro
Allows it to be easily overridden using the compiler commmandline.
Just like IFCONFIGPATH.
2019-08-24 16:43:34 +02:00
rofl0r 37960ab9dd client: warn when handshake fails due to BADIP
other parts of the code show the meaningful error message too, but
not at the spot where it happened for me.
2019-08-04 13:53:21 +02:00
Erik Ekman d37ebdaca7
Merge pull request #28 from l29ah/strncat-warning
client.c: don't produce an useless strncat usage warning
2019-08-04 13:42:13 +02:00
gregor herrmann 024481c94b Fix cross compilation
src/osflags hard codes the build architecture pkg-config. After making it
substitutable and substituting it from the build environment, iodine cross
builds successfully.

Original patch from Helmut Grohne <helmut@subdivi.de> in
https://bugs.debian.org/921822, adjusted to Git HEAD.
2019-08-04 13:30:33 +02:00
Sergey Alirzaev b406009c6d
client.c: don't produce an useless strncat usage warning 2018-10-01 04:04:15 +03:00
Erik Ekman 99c0efc467 Try building working binaries for non-ancient Android
Based on help from admin@hypothermic.nl
2017-10-22 11:54:59 +02:00
Erik Ekman 72bdf7f20e Merge branch 'protect-options' of https://github.com/Masaq-/iodine into protect_opts 2017-10-22 11:59:38 +02:00
chengzhicn 122ac1a25d check error returned by dns_decode
before this commit, sending "GET / HTTP/1.1" to server will cause uninitialized variable access.
2017-10-13 03:08:12 +08:00
Ralf Ramsauer 79455c380d consequently use tabs, and no spaces
and wrap lines at 80 characters

Signed-off-by: Ralf Ramsauer <ralf@ramses-pyramidenbau.de>
2017-04-10 21:26:13 +02:00
Ralf Ramsauer 8c5127b375 don't zero-initialise variable
For global variables, the C standard ensures that this variable will be
zeroed on startup.

Signed-off-by: Ralf Ramsauer <ralf@ramses-pyramidenbau.de>
2017-03-11 21:30:50 -08:00
Ralf Ramsauer 119d1b2da1 dns: improve code style
Signed-off-by: Ralf Ramsauer <ralf@ramses-pyramidenbau.de>
2017-03-11 21:30:50 -08:00
Ralf Ramsauer 4591cafd27 encoding: simplify {places,eats}_dots
Why not using constant bools?

Much simpler than complex function calls, that eventually return
constant values.

Signed-off-by: Ralf Ramsauer <ralf@ramses-pyramidenbau.de>
2017-03-11 21:30:50 -08:00
Ralf Ramsauer 0eb3b65158 encoding: use simple int's instead of accessor functions
Why are those values exposed to the outer world? They seem not be in use
anyway.

Signed-off-by: Ralf Ramsauer <ralf@ramses-pyramidenbau.de>
2017-03-11 21:30:50 -08:00
Ralf Ramsauer 317511e3ca nitpick: coding style
Signed-off-by: Ralf Ramsauer <ralf@ramses-pyramidenbau.de>
2017-03-11 21:30:50 -08:00
Ralf Ramsauer 844a2798eb encoder: use explicit variable names in operation structure
This makes it obvious, what each variable stands for.

Signed-off-by: Ralf Ramsauer <ralf@ramses-pyramidenbau.de>
2017-03-11 21:30:49 -08:00
Ralf Ramsauer 6b438e7517 encoder: further simplifications
Get rid of unique header files for each encoder, consolidate them to
where they are actually needed: encoding.h.

This also simplifies the generation of the base64u decoder, as its
header file does not need to be generated any longer.

Signed-off-by: Ralf Ramsauer <ralf@ramses-pyramidenbau.de>
2017-03-11 21:30:49 -08:00
Ralf Ramsauer b517121f1c base encoder: simplify structures
We don't need complex getters. Just expose basic operations as they are.

Signed-off-by: Ralf Ramsauer <ralf@ramses-pyramidenbau.de>
2017-03-11 21:30:49 -08:00
Ralf Ramsauer d05923d2b1 global: constify things
const everything, that should be const.

Signed-off-by: Ralf Ramsauer <ralf@ramses-pyramidenbau.de>
2017-03-11 21:30:49 -08:00
Ralf Ramsauer 52c4940523 Warn, warn warn.
iodine does not seem to follow any styling guidelines (mixture of
different function prototypes, ...).  So let's introduce some.  This
will improve overall code quality and readability.

Additionally, warnings will improve code quality as well. Let's turn on
very pedantic warnings, and fix everything where the compiler barks
back.

Introduce the following function definition scheme:
  type function_name(type name, type1 name1 ...)
  {
  }
This allows us to copy and paste the definition to the declaration by
selecting one single line.

Furthermore, limit line length to 80 characters.

Signed-off-by: Ralf Ramsauer <ralf@ramses-pyramidenbau.de>
2017-03-11 21:30:01 -08:00
Ralf Ramsauer ccc49f16f7 util: add missing #includes
Detected by activating stronger warnings. If include is missing,
prototypes might diverge.

Signed-off-by: Ralf Ramsauer <ralf@ramses-pyramidenbau.de>
2017-03-11 14:23:02 -08:00
Ralf Ramsauer ac6db12ddb iodine, iodined: print intentional help to stdout
Like other unix tools: don't print application output, if the user asks
intentionally for help.

Signed-off-by: Ralf Ramsauer <ralf@ramses-pyramidenbau.de>
2017-03-11 10:39:38 -08:00
Ralf Ramsauer f8f87e3a54 iodine: remove spurious newline
Signed-off-by: Ralf Ramsauer <ralf@ramses-pyramidenbau.de>
2017-03-11 10:39:38 -08:00
Ralf Ramsauer 84ded018cf iodine: add usage for -4 and -6 command line arguments
Those arguments were introduced, but not documented.

Fixes: 619ede5d ("Add options to force IP version for client DNS traffic")
Signed-off-by: Ralf Ramsauer <ralf@ramses-pyramidenbau.de>
2017-03-11 10:39:28 -08:00
Ralf Ramsauer 5fd0874aba iodine: improve help output format
Analogously to the patch for iodined before:
  - remove redundant fprint calls
  - maximum character width: 80 characters (improved readability)
  - add additional newlines

Signed-off-by: Ralf Ramsauer <ralf@ramses-pyramidenbau.de>
2017-03-11 02:17:27 -08:00
Ralf Ramsauer 43dad946c6 common: no need for \n in check_superuser
warnx adds the \n for us.

Signed-off-by: Ralf Ramsauer <ralf@ramses-pyramidenbau.de>
2017-03-11 02:17:27 -08:00
Ralf Ramsauer b884bfecfb iodined: improve usage() readability
Best readability is at 80 characters maximum per line.

Signed-off-by: Ralf Ramsauer <ralf@ramses-pyramidenbau.de>
2017-03-11 02:17:27 -08:00
Ralf Ramsauer 829a822de3 iodined: improve help output format
Standardise output format:
  - remove redundant fprint calls
  - maximum character width: 80 characters (improved readability)
  - add additional newlines

Signed-off-by: Ralf Ramsauer <ralf@ramses-pyramidenbau.de>
2017-03-11 02:17:27 -08:00