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/* Copyright (C) 2011 the GSS-PROXY contributors, see COPYING for license */
#ifndef _GP_PROXY_H_
#define _GP_PROXY_H_
#include <libintl.h>
#include <stdbool.h>
#include <stdint.h>
#include "verto.h"
#include "gp_common.h"
#include "gp_selinux.h"
#define _(STRING) gettext(STRING)
#define discard_const(ptr) ((void *)((uintptr_t)(ptr)))
#define LINUX_PROC_USE_GSS_PROXY_FILE "/proc/net/rpc/use-gss-proxy"
#define GP_CRED_KRB5 0x01
struct gp_cred_krb5 {
char *principal;
const char **cred_store;
int cred_count;
};
struct gp_creds_handle;
struct gp_service {
char *name;
uid_t euid;
bool any_uid;
bool trusted;
bool kernel_nfsd;
bool impersonate;
char *socket;
SELINUX_CTX selinux_ctx;
gss_cred_usage_t cred_usage;
uint32_t filter_flags;
uint32_t enforce_flags;
uint32_t mechs;
struct gp_cred_krb5 krb5;
struct gp_creds_handle *creds_handle;
verto_ev *ev;
};
struct gp_config {
char *config_file; /* gssproxy configuration file */
char *config_dir; /* gssproxy configuration directory */
bool daemonize; /* let gssproxy daemonize */
char *socket_name; /* the socket name to use for */
int num_workers; /* number of worker threads */
struct gp_service **svcs;
int num_svcs;
char *proxy_user; /* user to drop privs to if not NULL */
};
struct gp_workers;
struct gssproxy_ctx {
struct gp_config *config;
struct gp_workers *workers;
verto_ctx *vctx;
verto_ev *sock_ev; /* default socket event */
};
struct gp_sock_ctx {
struct gssproxy_ctx *gpctx;
const char *socket;
int fd;
};
struct gp_conn;
struct gp_call_ctx {
struct gssproxy_ctx *gpctx;
struct gp_service *service;
struct gp_conn *connection;
};
/* from gp_config.c */
struct gp_config *read_config(char *config_file, char *config_dir,
char *socket_name, int opt_daemonize);
struct gp_creds_handle *gp_service_get_creds_handle(struct gp_service *svc);
void free_config(struct gp_config **config);
/* from gp_init.c */
void init_server(bool daemonize, int *wait_fd);
void init_done(int wait_fd);
void fini_server(void);
verto_ctx *init_event_loop(void);
void init_proc_nfsd(struct gp_config *cfg);
void write_pid(void);
int drop_privs(struct gp_config *cfg);
/* from gp_socket.c */
void free_unix_socket(verto_ctx *ctx, verto_ev *ev);
struct gp_sock_ctx *init_unix_socket(struct gssproxy_ctx *gpctx,
const char *file_name);
void accept_sock_conn(verto_ctx *vctx, verto_ev *ev);
void gp_conn_free(struct gp_conn *conn);
void gp_socket_send_data(verto_ctx *vctx, struct gp_conn *conn,
uint8_t *buffer, size_t buflen);
struct gp_creds *gp_conn_get_creds(struct gp_conn *conn);
uid_t gp_conn_get_uid(struct gp_conn *conn);
const char *gp_conn_get_socket(struct gp_conn *conn);
bool gp_selinux_ctx_equal(SELINUX_CTX ctx1, SELINUX_CTX ctx2);
bool gp_conn_check_selinux(struct gp_conn *conn, SELINUX_CTX ctx);
/* from gp_workers.c */
int gp_workers_init(struct gssproxy_ctx *gpctx);
void gp_workers_free(struct gp_workers *w);
int gp_query_new(struct gp_workers *w, struct gp_conn *conn,
uint8_t *buffer, size_t buflen);
/* from gp_rpc.c */
int gp_rpc_process_call(struct gp_call_ctx *gpcall,
uint8_t *inbuf, size_t inlen,
uint8_t **outbuf, size_t *outlen);
/* from gp_creds.c */
struct gp_service *gp_creds_match_conn(struct gssproxy_ctx *gpctx,
struct gp_conn *conn);
/* from gp_export.c */
uint32_t gp_init_creds_handle(uint32_t *min, struct gp_creds_handle **out);
void gp_free_creds_handle(struct gp_creds_handle **in);
#endif /* _GP_PROXY_H_ */
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