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don't rewrite .wpc file if session was not modified #375

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don't rewrite .wpc file if session was not modified #375

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2 changes: 2 additions & 0 deletions src/defs.h
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Original file line number Diff line number Diff line change
Expand Up @@ -76,6 +76,8 @@
#define P1_SIZE 10000
#define P2_SIZE 1000

#define SESSION_SIGNATURE_LEN 32

#define EAPOL_START_MAX_TRIES 10
#define WARN_FAILURE_COUNT 10

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2 changes: 2 additions & 0 deletions src/globule.h
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Original file line number Diff line number Diff line change
Expand Up @@ -138,6 +138,8 @@ struct globals

char *session; /* Path to session file */

char session_signature[SESSION_SIGNATURE_LEN]; /* buffer for session signature value */

char *ssid; /* Target SSID */

char *iface; /* Interface name */
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21 changes: 21 additions & 0 deletions src/session.c
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Original file line number Diff line number Diff line change
Expand Up @@ -51,6 +51,12 @@ static void gen_sessionfile_name(const char* bssid, char* outbuf) {
#endif
}

static void make_session_signature(char* out)
{
snprintf(out, SESSION_SIGNATURE_LEN, "%s%s%d%04d%03d",
get_p1(get_p1_index()), get_p2(get_p2_index()), get_key_status(), get_p1_index(), get_p2_index());
}

int restore_session()
{
struct stat wpstat = { 0 };
Expand Down Expand Up @@ -167,6 +173,9 @@ int restore_session()
cprintf(INFO, "[+] Restored previous session\n");
}

/* set session signature */
make_session_signature(globule->session_signature);

/* If the specified pin was used, then insert into current index of p1 and p2 array */
if (!get_pin_string_mode() && get_static_p1()) {
i = jump_p1_queue(get_static_p1());
Expand Down Expand Up @@ -202,6 +211,14 @@ int save_session()
return 0;
}

/* Don't rewrite .wpc file if session was not modified */
char session_signature[SESSION_SIGNATURE_LEN];
make_session_signature(session_signature);
if (strcmp(globule->session_signature, session_signature) == 0) {
cprintf(VERBOSE, "[+] The session has already been saved.\n");
return 0;
}

/*
* If a session file was explicitly specified, use that; else, check for the
* default session file name for this BSSID.
Expand Down Expand Up @@ -241,6 +258,10 @@ int save_session()
for(i=0; i<P2_SIZE; i++) fprintf(fp, "%s\n", get_p2(i));

fclose(fp);

/* set session signature */
strcpy(globule->session_signature, session_signature);

return 1;
}

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