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-- these are types which are currently the same for all ports
-- in a module so rump does not import twice
-- note that even if type is same (like pollfd) if the metatype is different cannot be here due to ffi
-- TODO not sure we want these long term, merge to individual OS files.
local require, error, assert, tonumber, tostring,
setmetatable, pairs, ipairs, unpack, rawget, rawset,
pcall, type, table, string =
require, error, assert, tonumber, tostring,
setmetatable, pairs, ipairs, unpack, rawget, rawset,
pcall, type, table, string
local ffi = require "ffi"
local abi = require "syscall.abi"
local defs = {}
local function append(str) defs[#defs + 1] = str end
append [[
// 8 bit
typedef unsigned char cc_t;
// 16 bit
typedef uint16_t in_port_t;
// 32 bit
typedef uint32_t uid_t;
typedef uint32_t gid_t;
typedef int32_t pid_t;
typedef unsigned int socklen_t;
// 64 bit
typedef int64_t off_t;
// defined as long even though eg NetBSD defines as int on 32 bit, its the same.
typedef long ssize_t;
typedef unsigned long size_t;
// sighandler in Linux
typedef void (*sig_t)(int);
struct iovec {
void *iov_base;
size_t iov_len;
};
struct winsize {
unsigned short ws_row;
unsigned short ws_col;
unsigned short ws_xpixel;
unsigned short ws_ypixel;
};
struct in_addr {
uint32_t s_addr;
};
struct in6_addr {
unsigned char s6_addr[16];
};
struct ethhdr {
unsigned char h_dest[6];
unsigned char h_source[6];
unsigned short h_proto; /* __be16 */
} __attribute__((packed));
struct udphdr {
uint16_t source;
uint16_t dest;
uint16_t len;
uint16_t check;
};
]]
-- endian dependent TODO not really, define in independent way
if abi.le then
append [[
struct iphdr {
uint8_t ihl:4,
version:4;
uint8_t tos;
uint16_t tot_len;
uint16_t id;
uint16_t frag_off;
uint8_t ttl;
uint8_t protocol;
uint16_t check;
uint32_t saddr;
uint32_t daddr;
};
]]
else
append [[
struct iphdr {
uint8_t version:4,
ihl:4;
uint8_t tos;
uint16_t tot_len;
uint16_t id;
uint16_t frag_off;
uint8_t ttl;
uint8_t protocol;
uint16_t check;
uint32_t saddr;
uint32_t daddr;
};
]]
end
ffi.cdef(table.concat(defs, ""))
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