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Properly set up environment for managed-mode obfsproxy

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This commit is contained in:
Sebastian Hahn 2012-02-11 21:00:50 +01:00 committed by Nick Mathewson
parent 15309cbc49
commit 9857ef0fb5
2 changed files with 23 additions and 12 deletions
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6
changes/bug5082 Normal file
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@ -0,0 +1,6 @@
o Major bugfixes:
- Properly set up obfsproxy's environment in managed mode. On TBB, we
need LD_LIBRARY_PATH to be copied, and when you run your Tor as a
daemon, there's no HOME. Fixes bug 5082 and 5076; bugfix on
0.2.3.6-alpha.

29
src/or/transports.c
View File

@ -129,8 +129,8 @@ static INLINE void free_execve_args(char **arg);
#define SMALLEST_MANAGED_LINE_SIZE 9
/** Number of environment variables for managed proxy clients/servers. */
#define ENVIRON_SIZE_CLIENT 5
#define ENVIRON_SIZE_SERVER 8
#define ENVIRON_SIZE_CLIENT 3
#define ENVIRON_SIZE_SERVER 6
/** The first and only supported - at the moment - configuration
protocol version. */
@ -1077,6 +1077,8 @@ set_managed_proxy_environment(LPVOID *envp, const managed_proxy_t *mp)
#else /* _WIN32 */
extern char **environ;
/** Prepare the environment <b>envp</b> of managed proxy <b>mp</b>.
* <b>envp</b> is allocated on the heap and should be freed by the
* caller after its use. */
@ -1088,27 +1090,31 @@ set_managed_proxy_environment(char ***envp, const managed_proxy_t *mp)
char *state_loc=NULL;
char *transports_to_launch=NULL;
char *bindaddr=NULL;
char *home_env=NULL;
char *path_env=NULL;
int environ_size=0;
char **environ_tmp = environ;
int r = -1;
int n_envs = mp->is_server ? ENVIRON_SIZE_SERVER : ENVIRON_SIZE_CLIENT;
while (*environ_tmp) {
environ_size++;
environ_tmp++;
}
environ_tmp = environ;
/* allocate enough space for our env. vars and a NULL pointer */
*envp = tor_malloc(sizeof(char*)*(n_envs+1));
*envp = tor_malloc(sizeof(char*)*(environ_size+n_envs+1));
tmp = *envp;
state_loc = get_datadir_fname("pt_state/"); /* XXX temp */
transports_to_launch =
smartlist_join_strings(mp->transports_to_launch, ",", 0, NULL);
home_env = getenv("HOME");
path_env = getenv("PATH");
if (!home_env || !path_env)
goto done;
while (*environ_tmp) {
*tmp = tor_strdup(*environ_tmp);
tmp++, environ_tmp++;
}
tor_asprintf(tmp++, "HOME=%s", home_env);
tor_asprintf(tmp++, "PATH=%s", path_env);
tor_asprintf(tmp++, "TOR_PT_STATE_LOCATION=%s", state_loc);
tor_asprintf(tmp++, "TOR_PT_MANAGED_TRANSPORT_VER=1"); /* temp */
if (mp->is_server) {
@ -1126,7 +1132,6 @@ set_managed_proxy_environment(char ***envp, const managed_proxy_t *mp)
r = 0;
done:
tor_free(state_loc);
tor_free(transports_to_launch);
tor_free(bindaddr);