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Start implementation of import

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Max Moser 2018-02-09 15:05:19 +01:00
parent 3bb3c292bb
commit 41d3c7d065
1 changed files with 325 additions and 0 deletions
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325
properties/import-export.c
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@ -777,6 +777,216 @@ inline_blob_write_out (const InlineBlobData *data, GError **error)
/*****************************************************************************/ /*****************************************************************************/
static gboolean
_parse_common (const char **line, int *idx, char **out_error)
{
int len = 0;
while(line && line[len]){
len++;
}
// TODO what happens when we have KEY=VALUE?
if(!line[0]){
*out_error = g_strdup_printf("Nothing found in the line");
return FALSE;
}
else if(!line[1]){
*out_error = g_strdup_printf("No value found for setting '%s'", line[0]);
return FALSE;
}
else if(!g_strcmp0("=", line[1])){
// we have an equals sign included
// KEY = VALUE
if(!line[2]){
*out_error = g_strdup_printf("Expected line to be of form KEY = VALUE");
return FALSE;
}
*idx = 2;
}
else{
// we don't have an equals sign included
// KEY VALUE
*idx = 1;
}
return TRUE;
}
static gboolean
parse_endpoint(const char **line, char **endpoint, char **out_error)
{
int idx = 0;
if(!_parse_common(line, &idx, out_error)){
*endpoint = NULL;
return FALSE;
}
*endpoint = g_strdup(line[idx]);
return TRUE;
}
static gboolean
parse_listen_port(const char **line, char **port, char **out_error)
{
int idx = 0;
if(!_parse_common(line, &idx, out_error)){
return FALSE;
}
*port = g_strdup(line[idx]);
if(!g_ascii_string_to_unsigned(*port, 10, 0, 65535, NULL, NULL)){
*out_error = g_strdup_printf("'%s' is not a valid port assignment!", *port);
g_free(*port);
*port = NULL;
return FALSE;
}
return TRUE;
}
static gboolean
parse_private_key(const char **line, char **key, char **out_error)
{
int idx = 0;
if(!_parse_common(line, &idx, out_error)){
*key = NULL;
return FALSE;
}
*key = g_strdup(line[idx]);
// TODO check if base64?
// TOOD check length?
return TRUE;
}
#define parse_public_key(line, key, out_error) parse_private_key(line, key, out_error)
static gboolean
parse_preshared_key(const char **line, char **key, char **out_error)
{
int idx = 0;
if(!_parse_common(line, &idx, out_error)){
*key = NULL;
return FALSE;
}
*key = g_strdup(line[idx]);
// TODO any checks?
return TRUE;
}
static gboolean
_is_ip4(char *addr)
{
int idx = 0;
int dots = 0;
while(addr && addr[idx]){
if(addr[idx] == '.'){
dots++;
}
idx++;
}
if(dots != 3){
return FALSE;
}
// might have a subnet suffix after a slash (e.g. 192.168.1.254/24)
// might have a port suffix after a colon (e.g. 192.168.1.254:8080)
return TRUE;
}
static gboolean
_is_ip6(char *addr)
{
return TRUE;
}
static char *
_parse_ip4_address(char *address)
{
char *ip4 = g_strdup(address);
size_t len = strlen(ip4);
// if there is a trailing comma, remove it
// -- might be, because the config can have an IP4 and IP6
if(ip4[len - 1] == ','){
ip4[len - 1] = '\0';
}
if(!_is_ip4(ip4)){
g_free(ip4);
ip4 = NULL;
}
return ip4;
}
static char *
_parse_ip6_address(char *address)
{
char *ip6 = g_strdup(address);
size_t len = strlen(ip6);
// same as for IP4
if(ip6[len - 1] == ','){
ip6[len - 1] = '\0';
}
if(!_is_ip6(ip6)){
g_free(ip6);
ip6 = NULL;
}
return ip6;
}
static gboolean
parse_address(const char **line, char **ip4_address, char **ip6_address, char **out_error)
{
int idx = 0;
char *ip4 = NULL;
char *ip6 = NULL;
if(!_parse_common(line, &idx, out_error)){
*ip4_address = NULL;
*ip6_address = NULL;
return FALSE;
}
while(line && line[idx]){
ip4 = _parse_ip4_address(line[idx]);
if(ip4){
printf("Found IP4: %s\n", ip4);
*ip4_address = ip4;
idx++;
continue;
}
ip6 = _parse_ip6_address(line[idx]);
if(ip6){
printf("Found IP6: %s\n", ip6);
*ip6_address = ip6;
}
idx++;
}
return TRUE;
}
NMConnection * NMConnection *
do_import (const char *path, const char *contents, gsize contents_len, GError **error) do_import (const char *path, const char *contents, gsize contents_len, GError **error)
{ {
@ -858,6 +1068,121 @@ do_import (const char *path, const char *contents, gsize contents_len, GError **
g_assert (params[0]); g_assert (params[0]);
// interface section
if (NM_IN_STRSET (params[0], NMV_WG_TAG_INTERFACE)){
printf("contgrats! you found the %s section!\n", params[0]);
continue;
}
if (NM_IN_STRSET (params[0], NMV_WG_TAG_LISTEN_PORT)){
char *port = NULL;
if(!parse_listen_port(params, &port, &line_error)){
goto handle_line_error;
}
// TODO
printf("Port: %s\n", port);
continue;
}
if (NM_IN_STRSET (params[0], NMV_WG_TAG_ADDRESS)){
char *addr4 = NULL;
char *addr6 = NULL;
if(!parse_address(params, &addr4, &addr6, &line_error)){
goto handle_line_error;
}
printf("You have IP4: %s\n", addr4);
printf("You have IP6: %s\n", addr6);
// TODO probably needs further processing because format is
// Address = 0.0.0.1, ::1
// i.e. there might be a comma after the first address
continue;
}
if (NM_IN_STRSET (params[0], NMV_WG_TAG_PRIVATE_KEY)){
char *key = NULL;
if(!parse_private_key(params, &key, &line_error)){
goto handle_line_error;
}
printf("gonna leak your private key now: %s\n", key);
continue;
}
if (NM_IN_STRSET (params[0], NMV_WG_TAG_PRESHARED_KEY)){
char *psk = NULL;
if(!parse_preshared_key(params, &psk, &line_error)){
goto handle_line_error;
}
printf("*gasp* your secret really is: %s?\n", psk);
continue;
}
if (NM_IN_STRSET (params[0], NMV_WG_TAG_POST_UP)){
char *script = NULL;
// TODO
printf("PostUp: %s\n", params[2]);
continue;
}
if (NM_IN_STRSET (params[0], NMV_WG_TAG_POST_DOWN)){
// TODO
printf("PostDown: %s\n", params[2]);
continue;
}
// peer section
if (NM_IN_STRSET (params[0], NMV_WG_TAG_PEER)){
printf("congrats! you found the %s section!\n", params[0]);
continue;
}
if(NM_IN_STRSET (params[0], NMV_WG_TAG_ALLOWED_IPS)){
printf("Allowed IPs: %s\n", params[2]);
// TODO
continue;
}
if(NM_IN_STRSET (params[0], NMV_WG_TAG_PUBLIC_KEY)){
char *key = NULL;
if(!parse_public_key(params, &key, &line_error)){
goto handle_line_error;
}
printf("Public Key of the peer: %s\n", key);
continue;
}
if (NM_IN_STRSET (params[0], NMV_WG_TAG_ENDPOINT)){
char *endpoint;
if(!parse_endpoint(params, &endpoint, &line_error)){
goto handle_line_error;
}
/*
if (params[1] && !g_strcmp0("=", params[1])){
if(!params[2]){
line_error = g_strdup_printf("Endpoint expects at least one IP address");
goto handle_line_error;
}
} else {
printf("There was no equals sign.\n");
}
printf("Have you heard the one about Wireguard and Endpoints already?\n");
printf("%s...\n", params[1]);
if(params[1] && params[2]){
printf("> %s...\n", params[2]);
}
*/
printf("Endpoint: %s\n", endpoint);
continue;
}
/*************************************************************************************/
/* allow for a leading double-dash and skip over it (bypass_doubledash). */ /* allow for a leading double-dash and skip over it (bypass_doubledash). */
if (g_str_has_prefix (params[0], "--")) if (g_str_has_prefix (params[0], "--"))
params[0] = &params[0][2]; params[0] = &params[0][2];