// Common functions and macros used by the compile-server and its client.
#ifndef CSCOMMON_H
#define CSCOMMON_H 1
#if HAVE_NSS
extern "C"
{
#include <ssl.h>
#include <nspr.h>
}
#endif
// Versioning system for the protocol used for communication between the compile-server and client.
// The original version is 1.0. After that, we use the systemtap release number.
//
// By Policy:
// - All servers are backward compatible with clients. Servers adapt to the protocol version
// of the client.
// - All clients are backward compatible with servers. Clients adapt to the protocol version
// of the server. Warnings are issued for servers lacking features.
//
// Features:
// Version 1.0
// Original version
// Versions 1.6 and higher
// Client:
// - Passes localization variables to the server in the file client_tmpdir + "/locale"
// - Looks for the uprobes module in server_response + "/uprobes"
// - No longer needs to remove stap's "Keeping temporary directory ..." message from
// the server's stderr response.
// - Looks for 'version' tag in server's avahi record and does not automatically connect to
// an incompatible server. Also prefers newer servers over older ones.
// Server:
// - Applies localization variables passed from the client to stap during translation.
// - Looks for the uprobes module in server_response + "/uprobes"
// - Uses --tmpdir to specify temp directory to be used by stap, instead of -k, in order to
// avoid parsing error messages in search of stap's randomly-generated temp dir.
// - Advertises its protocol version using a 'version' tag in avahi.
//
#define CURRENT_CS_PROTOCOL_VERSION VERSION
struct cs_protocol_version
{
cs_protocol_version (const char *v = "1.0") : v(0) { *this = v; }
~cs_protocol_version ();
const cs_protocol_version &operator= (const char *v);
bool operator< (const cs_protocol_version &that) const;
const char *v;
};
#if HAVE_NSS
struct thread_arg
{
PRFileDesc *tcpSocket;
CERTCertificate *cert;
SECKEYPrivateKey *privKey;
PRNetAddr addr;
};
extern int read_from_file (const std::string &fname, cs_protocol_version &data);
extern std::string get_cert_serial_number (const CERTCertificate *cert);
#endif
#endif // CSCOMMON_H