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#ifndef UMBRELLA_H
#define UMBRELLA_H
#include <stdint.h>
#include <sys/types.h>
/* ── Version ─────────────────────────────────────────────────────────────── */
#define UMBRELLA_VERSION "0.1.0"
/* ── Paths ───────────────────────────────────────────────────────────────── */
#define UMBRELLA_CONF_DIR "/etc/umbrella"
#define UMBRELLA_UNITS_DIR "/etc/umbrella/units"
#define UMBRELLA_CONF_FILE "/etc/umbrella/umbrella.conf"
#define UMBRELLA_SOCK_PATH "/run/umbrella/umbrella.sock"
#define UMBRELLA_PID_FILE "/run/umbrella/umbrella.pid"
#define UMBRELLA_LOG_FILE "/var/log/umbrella/umbrella.log"
/* ── Limits ──────────────────────────────────────────────────────────────── */
#define MAX_UNITS 64
#define MAX_CLIENTS 32
#define MAX_NAME 64
#define MAX_PATH 256
#define MAX_DISPLAY 128
#define MAX_ACTIONS 16
#define RING_BUF_LINES 500 /* output lines buffered per unit */
#define RING_BUF_LINE_MAX 1024 /* max bytes per buffered line */
#define PROTO_MAX_MSG 65536 /* max wire message size */
/* ── Console types ───────────────────────────────────────────────────────── */
typedef enum {
CONSOLE_RCON = 0,
CONSOLE_STDIN = 1,
} ConsoleType;
/* ── Health check types ──────────────────────────────────────────────────── */
typedef enum {
HEALTH_A2S = 0,
HEALTH_TCP = 1,
HEALTH_NONE = 2,
} HealthType;
/* ── Process state ───────────────────────────────────────────────────────── */
typedef enum {
STATE_STOPPED = 0,
STATE_STARTING = 1,
STATE_RUNNING = 2,
STATE_CRASHED = 3,
STATE_STOPPING = 4,
} ProcessState;
/* ── Action: a named script ──────────────────────────────────────────────── */
typedef struct {
char name[MAX_NAME];
char script[MAX_PATH];
} Action;
/* ── Console config ──────────────────────────────────────────────────────── */
typedef struct {
ConsoleType type;
char host[64];
uint16_t port;
char password[128]; /* RCON password; empty for stdin */
char password_env[64]; /* env var name to read password from */
} ConsoleConfig;
/* ── Health config ───────────────────────────────────────────────────────── */
typedef struct {
HealthType type;
char host[64];
uint16_t port;
int timeout_ms;
} HealthConfig;
/* ── Ring buffer: circular store of recent output lines ──────────────────── */
typedef struct {
char lines[RING_BUF_LINES][RING_BUF_LINE_MAX];
int head; /* next write position */
int count; /* how many lines are valid */
} RingBuffer;
/* ── Unit: a loaded descriptor ───────────────────────────────────────────── */
typedef struct {
char name[MAX_NAME];
char display[MAX_DISPLAY];
char service[MAX_NAME]; /* systemd unit name, informational */
char broadcast_cmd[128]; /* command template for !broadcast, e.g. "say {msg}" */
ConsoleConfig console;
HealthConfig health;
char log_paths[4][MAX_PATH];
int log_count;
Action actions[MAX_ACTIONS];
int action_count;
char log_filter[MAX_PATH]; /* path to filter executable, or empty */
char log_dir[MAX_PATH]; /* directory to watch, or "" if not used */
char log_dir_pattern[MAX_PATH]; /* fnmatch pattern for log files; default "*" */
/* Runtime state (populated by process/rcon layer, not yaml) */
ProcessState state;
pid_t pid; /* only for CONSOLE_STDIN */
int stdin_fd; /* only for CONSOLE_STDIN */
int stdout_fd; /* only for CONSOLE_STDIN */
RingBuffer *output;
/* Log filter subprocess (populated at runtime if log_filter is set) */
pid_t filter_pid;
int filter_in_fd; /* write end: daemon → filter stdin */
int filter_out_fd; /* read end: filter stdout → daemon */
} Unit;
/* ── Client: a connected socket client ───────────────────────────────────── */
typedef struct {
int fd;
char attached[MAX_NAME]; /* unit name, or empty if not attached */
int uid; /* peer uid from SO_PEERCRED */
} Client;
/* ── Global daemon state ─────────────────────────────────────────────────── */
typedef struct {
Unit units[MAX_UNITS];
int unit_count;
Client clients[MAX_CLIENTS];
int client_count;
int epoll_fd;
int listen_fd;
int signal_fd;
int running;
} Daemon;
extern Daemon g;
#endif /* UMBRELLA_H */
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