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Mayaqua/Memory: move and adapt entry list functions from Cedar/Proto_OpenVPN

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This commit is contained in:
Davide Beatrici 2018-10-06 22:41:35 +02:00
parent 2271bf5fba
commit 9970d6f657
4 changed files with 92 additions and 79 deletions
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88
src/Cedar/Proto_OpenVPN.c
View File

@ -690,19 +690,19 @@ void OvsBeginIPCAsyncConnectionIfEmpty(OPENVPN_SERVER *s, OPENVPN_SESSION *se, O
// if the option --push-peer-info is enabled.
// It also sends all of the client's environment
// variables whose names start with "UV_".
pi = OvsParseData(c->ClientKey.PeerInfo, OPENVPN_DATA_PEERINFO);
pi = NewEntryList(c->ClientKey.PeerInfo, "\n", "=\t");
// Check presence of custom hostname
if (OvsHasEntry(pi, "UV_HOSTNAME"))
if (EntryListHasKey(pi, "UV_HOSTNAME"))
{
StrCpy(p.ClientHostname, sizeof(p.ClientHostname), IniStrValue(pi, "UV_HOSTNAME"));
StrCpy(p.ClientHostname, sizeof(p.ClientHostname), EntryListStrValue(pi, "UV_HOSTNAME"));
}
else // Use the default gateway's MAC address
{
StrCpy(p.ClientHostname, sizeof(p.ClientHostname), IniStrValue(pi, "IV_HWADDR"));
StrCpy(p.ClientHostname, sizeof(p.ClientHostname), EntryListStrValue(pi, "IV_HWADDR"));
}
OvsFreeList(pi);
FreeEntryList(pi);
if (se->Mode == OPENVPN_MODE_L3)
{
@ -814,13 +814,13 @@ void OvsSetupSessionParameters(OPENVPN_SERVER *s, OPENVPN_SESSION *se, OPENVPN_C
StrCpy(opt_str, sizeof(opt_str), s->Cedar->OpenVPNDefaultClientOption);
}
o = OvsParseData(opt_str, OPENVPN_DATA_OPTIONS);
o = NewEntryList(opt_str, ",", " \t");
if (se->Mode == OPENVPN_MODE_UNKNOWN)
{
UINT mtu;
// Layer
if (StrCmpi(IniStrValue(o, "dev-type"), "tun") == 0)
if (StrCmpi(EntryListStrValue(o, "dev-type"), "tun") == 0)
{
// L3
se->Mode = OPENVPN_MODE_L3;
@ -832,7 +832,7 @@ void OvsSetupSessionParameters(OPENVPN_SERVER *s, OPENVPN_SESSION *se, OPENVPN_C
}
// Link MTU
mtu = IniIntValue(o, "link-mtu");
mtu = EntryListIntValue(o, "link-mtu");
if (mtu == 0)
{
mtu = OPENVPN_MTU_LINK;
@ -840,7 +840,7 @@ void OvsSetupSessionParameters(OPENVPN_SERVER *s, OPENVPN_SESSION *se, OPENVPN_C
se->LinkMtu = mtu;
// Tun MTU
mtu = IniIntValue(o, "tun-mtu");
mtu = EntryListIntValue(o, "tun-mtu");
if (mtu == 0)
{
mtu = OPENVPN_MTU_TUN;
@ -876,12 +876,12 @@ void OvsSetupSessionParameters(OPENVPN_SERVER *s, OPENVPN_SESSION *se, OPENVPN_C
}
// Encryption algorithm
cipher_name = IniStrValue(o, "cipher");
cipher_name = EntryListStrValue(o, "cipher");
c->CipherEncrypt = OvsGetCipher(cipher_name);
c->CipherDecrypt = OvsGetCipher(cipher_name);
// Hash algorithm
c->MdSend = OvsGetMd(IniStrValue(o, "auth"));
c->MdSend = OvsGetMd(EntryListStrValue(o, "auth"));
c->MdRecv = NewMd(c->MdSend->Name);
// Random number generation
@ -915,7 +915,7 @@ void OvsSetupSessionParameters(OPENVPN_SERVER *s, OPENVPN_SESSION *se, OPENVPN_C
SetMdKey(c->MdRecv, c->ExpansionKey + 64, c->MdRecv->Size);
SetMdKey(c->MdSend, c->ExpansionKey + 192, c->MdSend->Size);
OvsFreeList(o);
FreeEntryList(o);
// We pass the cipher name sent from the OpenVPN client, unless it's a different cipher, to prevent a message such as:
// WARNING: 'cipher' is used inconsistently, local='cipher AES-128-GCM', remote='cipher aes-128-gcm'
@ -982,70 +982,6 @@ MD *OvsGetMd(char *name)
return m;
}
// Parse data string
LIST *OvsParseData(char *str, int type)
{
LIST *o = NewListFast(NULL);
TOKEN_LIST *t;
t = ParseTokenWithoutNullStr(str, type == OPENVPN_DATA_OPTIONS ? "," : "\n");
if (t != NULL)
{
UINT i;
for (i = 0;i < t->NumTokens;i++)
{
char key[MAX_SIZE];
char value[MAX_SIZE];
char *line = t->Token[i];
Trim(line);
if (GetKeyAndValue(line, key, sizeof(key), value, sizeof(value), type == OPENVPN_DATA_OPTIONS ? " \t" : "=\t"))
{
INI_ENTRY *e = ZeroMalloc(sizeof(INI_ENTRY));
e->Key = CopyStr(key);
e->Value = CopyStr(value);
Add(o, e);
}
}
FreeToken(t);
}
return o;
}
// Release the option list
void OvsFreeList(LIST *o)
{
// Validate arguments
if (o == NULL)
{
return;
}
FreeIni(o);
}
// Confirm whether there is specified option key string
bool OvsHasEntry(LIST *o, char *key)
{
// Validate arguments
if (o == NULL || key == NULL)
{
return false;
}
if (GetIniEntry(o, key) != NULL)
{
return true;
}
return false;
}
// Build the data from KEY_METHOD2
BUF *OvsBuildKeyMethod2(OPENVPN_KEY_METHOD_2 *d)
{

3
src/Cedar/Proto_OpenVPN.h
View File

@ -359,9 +359,6 @@ void OvsSetupSessionParameters(OPENVPN_SERVER *s, OPENVPN_SESSION *se, OPENVPN_C
BUF *OvsBuildKeyMethod2(OPENVPN_KEY_METHOD_2 *d);
void OvsWriteStringToBuf(BUF *b, char *str, UINT max_size);
LIST *OvsParseData(char *str, int type);
void OvsFreeList(LIST *o);
bool OvsHasEntry(LIST *o, char *key);
UINT OvsPeekStringFromFifo(FIFO *f, char *str, UINT str_size);
void OvsBeginIPCAsyncConnectionIfEmpty(OPENVPN_SERVER *s, OPENVPN_SESSION *se, OPENVPN_CHANNEL *c);
UINT OvsCalcTcpMss(OPENVPN_SERVER *s, OPENVPN_SESSION *se, OPENVPN_CHANNEL *c);

75
src/Mayaqua/Memory.c
View File

@ -2155,6 +2155,81 @@ LIST *NewListEx2(COMPARE *cmp, bool fast, bool fast_malloc)
return o;
}
// Parses a string by identifying its parts using the specified separators
LIST *NewEntryList(char *src, char *key_separator, char *value_separator)
{
LIST *o = NewListFast(NULL);
TOKEN_LIST *t;
t = ParseTokenWithoutNullStr(src, key_separator);
if (t != NULL)
{
UINT i;
for (i = 0; i < t->NumTokens; i++)
{
char key[MAX_SIZE];
char value[MAX_SIZE];
char *line = t->Token[i];
Trim(line);
if (GetKeyAndValue(line, key, sizeof(key), value, sizeof(value), value_separator))
{
INI_ENTRY *e = ZeroMalloc(sizeof(INI_ENTRY));
e->Key = CopyStr(key);
e->Value = CopyStr(value);
Add(o, e);
}
}
FreeToken(t);
}
return o;
}
// Checks whether the list contains the specified entry
bool EntryListHasKey(LIST *o, char *key)
{
// Validate arguments
if (o == NULL || key == NULL)
{
return false;
}
if (GetIniEntry(o, key) != NULL)
{
return true;
}
return false;
}
// Gets the value of the specified key from the entry list
char *EntryListStrValue(LIST *o, char *key)
{
return IniStrValue(o, key);
}
UINT EntryListIntValue(LIST *o, char *key)
{
return IniIntValue(o, key);
}
// Release the entry list
void FreeEntryList(LIST *o)
{
// Validate arguments
if (o == NULL)
{
return;
}
FreeIni(o);
}
// Read all data from FIFO
BUF *ReadFifoAll(FIFO *f)
{

5
src/Mayaqua/Memory.h
View File

@ -380,6 +380,11 @@ LIST *NewListFast(COMPARE *cmp);
LIST *NewListEx(COMPARE *cmp, bool fast);
LIST *NewListEx2(COMPARE *cmp, bool fast, bool fast_malloc);
LIST *NewListSingle(void *p);
LIST *NewEntryList(char *src, char *key_separator, char *value_separator);
bool EntryListHasKey(LIST *o, char *key);
char *EntryListStrValue(LIST *o, char *key);
UINT EntryListIntValue(LIST *o, char *key);
void FreeEntryList(LIST *o);
LIST *CloneList(LIST *o);
void CopyToArray(LIST *o, void *p);
void *ToArray(LIST *o);