constants.h

// Copyright Contributors to the L3AF Project.
// SPDX-License-Identifier: GPL-2.0

#ifndef CONSTANTS_H
#define CONSTANTS_H

#ifndef PATH_MAX
#define PATH_MAX        4096
#endif

#define DEFAULT_LOGFILE "/var/log/tb/l3af/ratelimiting.log"

#define MAP_COUNT	5
#define MAX_PORTS       50

/* Path at which BPF maps are pinned */
const char *pin_basedir = "/sys/fs/bpf";
const char *pin_subdir	= "ratelimiting";

/* Map that stores the ratelimit configuration */
const char *config_map = "/sys/fs/bpf/ratelimiting/rl_config_map";

/* Map that maintains the window start timestamp and the connections received
 * in this window(next 1 sec). */
const char *window_map = "/sys/fs/bpf/ratelimiting/rl_window_map";

/* Map that mainatains total number of incoming connections */
const char *recv_count_map = "/sys/fs/bpf/ratelimiting/rl_recv_count_map";

/* Map that maintains the total number of dropped connnections as the *
 * ratelimit hits */
const char *drop_count_map = "/sys/fs/bpf/ratelimiting/rl_drop_count_map";

/* XDP program that would be injected in the kernel */
const char *xdp_prog = "/sys/fs/bpf/ratelimiting/xdp_ratelimiting";

/* XDP program that is next in the chain */
const char *xdp_rl_ingress_next_prog = "/sys/fs/bpf/xdp_rl_ingress_next_prog";

/* Buffer time(in sec) to hold the map elements, after which they get deleted */
const int buffer_time = 10;

/* Port separator */
const char delim[] = ",";

#endif