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Add socket support for mips

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This commit is contained in:
Lucas Schumacher 2025-04-29 18:53:48 -04:00
parent 37bf95704e
commit 74cfa5f949
3 changed files with 187 additions and 13 deletions
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140
arch/mips.c
View File

@ -102,4 +102,144 @@ int fsync(unsigned int fd){
return rtn; return rtn;
} }
int socket(int domain, int type, int protocol){
int sockfd = 0;
asm volatile (
"move $a0, %1\n"
"move $a1, %2\n"
"move $a2, %3\n"
"li $v0, 4183\n"
"syscall\n"
"move %0, $v0\n"
: "=r"(sockfd)
: "r"(domain), "r"(type), "r"(protocol)
: "a0", "a1", "a2", "v0", "memory"
);
return sockfd;
}
int setsockopt(int sockfd, int level, int optname, const void* optval, socklen_t optlen){
int rtn = 0;
asm volatile (
"li $v0, 4181\n"
"move $a0, %1\n"
"move $a1, %2\n"
"move $a2, %3\n"
"move $a3, %4\n"
"addiu $sp, $sp, -32\n"
"sw %5, 16($sp)\n"
"syscall\n"
"addiu $sp, $sp, 32\n"
"move %0, $v0\n"
: "=r"(rtn)
: "r"(sockfd), "r"(level), "r"(optname), "r"(optval), "r"(optlen)
: "a0", "a1", "a2", "a3", "t0", "v0"
);
return rtn;
}
int bind(int sockfd, const void* sockaddr, socklen_t addrlen) {
int rtn = 0;
asm volatile (
"move $a0, %1\n"
"move $a1, %2\n"
"move $a2, %3\n"
"li $v0, 4169\n"
"syscall\n"
"move %0, $v0\n"
: "=r"(rtn)
: "r"(sockfd), "r"(sockaddr), "r"(addrlen)
: "a0", "a1", "a2", "v0"
);
return rtn;
}
int listen(int fd, int backlog) {
int rtn = 0;
asm volatile (
"move $a0, %1\n"
"move $a1, %2\n"
"li $v0, 4174\n"
"syscall\n"
"move %0, $v0\n"
: "=r"(rtn)
: "r"(fd), "r"(backlog)
: "a0", "a1", "v0"
);
return rtn;
}
int accept(int sockfd, void* addr, socklen_t* addrlen) {
int connfd = 0;
asm volatile (
"move $a0, %1\n"
"move $a1, %2\n"
"move $a2, %3\n"
"li $v0, 4168\n"
"syscall\n"
"move %0, $v0\n"
: "=r"(connfd)
: "r"(sockfd), "r"(addr), "r"(addrlen)
: "a0", "a1", "a2", "v0", "memory"
);
return connfd;
}
int connect(int sockfd, void* addr, socklen_t addrlen) {
int connfd = 0;
asm volatile (
"move $a0, %1\n"
"move $a1, %2\n"
"move $a2, %3\n"
"li $v0, 4170\n"
"syscall\n"
"move %0, $v0\n"
: "=r"(connfd)
: "r"(sockfd), "r"(addr), "r"(addrlen)
: "a0", "a1", "a2", "v0"
);
return connfd;
}
ssize_t sendto(int sockfd, const void* buf, size_t size, int flags, const void* sockaddr, socklen_t addrlen){
ssize_t rtn = 0;
asm volatile (
"li $v0, 4180\n"
"move $a0, %1\n"
"move $a1, %2\n"
"move $a2, %3\n"
"move $a3, %4\n"
"addiu $sp, $sp, -32\n"
"sw %5, 16($sp)\n"
"sw %6, 20($sp)\n"
"syscall\n"
"addiu $sp, $sp, 32\n"
"move %0, $v0\n"
: "=r"(rtn)
: "r"(sockfd), "r"(buf), "r"(size), "r"(flags), "r"(sockaddr), "r"(addrlen)
: "a0", "a1", "a2", "a3", "t0", "t1", "v0"
);
return rtn;
}
ssize_t recvfrom(int sockfd, const void* buf, size_t size, int flags, const void* sockaddr, socklen_t addrlen){
ssize_t rtn = 0;
asm volatile (
"li $v0, 4176\n"
"move $a0, %1\n"
"move $a1, %2\n"
"move $a2, %3\n"
"move $a3, %4\n"
"addiu $sp, $sp, -32\n"
"sw %5, 16($sp)\n"
"sw %6, 20($sp)\n"
"syscall\n"
"addiu $sp, $sp, 32\n"
"move %0, $v0\n"
: "=r"(rtn)
: "r"(sockfd), "r"(buf), "r"(size), "r"(flags), "r"(sockaddr), "r"(addrlen)
: "a0", "a1", "a2", "a3", "t0", "t1", "v0", "memory"
);
return rtn;
}
#endif #endif

11
socktest.c
View File

@ -8,8 +8,12 @@ int main() {
struct sockaddr_in server, client; struct sockaddr_in server, client;
server.sin_family = AF_INET; server.sin_family = AF_INET;
server.sin_addr.s_addr = INADDR_ANY; server.sin_addr.s_addr = INADDR_ANY;
//server.sin_port = htons( 6969 );
#if defined(__mips__)
server.sin_port = 6969;
#else
server.sin_port = 0x391b; server.sin_port = 0x391b;
#endif
// Create the socket // Create the socket
socket_fd = socket(AF_INET, SOCK_STREAM, IPPROTO_IP); socket_fd = socket(AF_INET, SOCK_STREAM, IPPROTO_IP);
@ -21,7 +25,7 @@ int main() {
// Set socket options // Set socket options
int opt = 1; int opt = 1;
if(0 > setsockopt(socket_fd, SOL_SOCKET, SO_REUSEADDR | SO_REUSEPORT, &opt, sizeof(opt))) { if(0 > setsockopt(socket_fd, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(optlen))) {
write(STDERR, "Socket error\n", 13); write(STDERR, "Socket error\n", 13);
close(socket_fd); close(socket_fd);
return 2; return 2;
@ -89,3 +93,6 @@ int main() {
void _start() { void _start() {
exit(main()); exit(main());
} }
void __start() {
exit(main());
}

39
sys.h
View File

@ -44,9 +44,9 @@ int bind(int sockfd, const void* sockaddr, socklen_t addrlen);
int listen(int fd, int backlog); int listen(int fd, int backlog);
int accept(int sockfd, void* addr, socklen_t* addrlen); int accept(int sockfd, void* addr, socklen_t* addrlen);
int connect(int sockfd, void* addr, socklen_t addrlen); int connect(int sockfd, void* addr, socklen_t addrlen);
int64_t sendto(int sockfd, const void* buf, size_t size, int flags, const void* sockaddr, socklen_t addrlen); ssize_t sendto(int sockfd, const void* buf, size_t size, int flags, const void* sockaddr, socklen_t addrlen);
#define send(sockfd, buf, size, flags) sendto(sockfd, buf, size, flags, 0, 0) #define send(sockfd, buf, size, flags) sendto(sockfd, buf, size, flags, 0, 0)
int64_t recvfrom(int sockfd, const void* buf, size_t size, int flags, const void* sockaddr, socklen_t addrlen); ssize_t recvfrom(int sockfd, const void* buf, size_t size, int flags, const void* sockaddr, socklen_t addrlen);
#define recv(sockfd, buf, size, flags) recvfrom(sockfd, buf, size, flags, 0, 0) #define recv(sockfd, buf, size, flags) recvfrom(sockfd, buf, size, flags, 0, 0)
// Socket Domain constants // Socket Domain constants
typedef unsigned short sa_family_t; typedef unsigned short sa_family_t;
@ -61,6 +61,37 @@ typedef unsigned short sa_family_t;
#define AF_CAN 29 /* Controller Area Network */ #define AF_CAN 29 /* Controller Area Network */
#define AF_BLUETOOTH 31 /* Bluetooth sockets */ #define AF_BLUETOOTH 31 /* Bluetooth sockets */
// Socket type constants // Socket type constants
#if defined(__mips__)
// File: include/asm-mips/socket.h
enum sock_type {
SOCK_DGRAM = 1,
SOCK_STREAM = 2,
SOCK_RAW = 3,
SOCK_RDM = 4,
SOCK_SEQPACKET = 5,
SOCK_DCCP = 6,
SOCK_PACKET = 10,
};
#define SOL_SOCKET 0xffff
#define SO_DEBUG 0x0001 /* Record debugging information. */
#define SO_REUSEADDR 0x0004 /* Allow reuse of local addresses. */
#define SO_TYPE 0x1008 /* Compatible name for SO_STYLE. */
#define SO_ERROR 0x1007 /* get error status and clear */
#define SO_DONTROUTE 0x0010 /* Don't do local routing. */
#define SO_BROADCAST 0x0020 /* Allow transmission of broadcast messages. */
#define SO_SNDBUF 0x1001 /* Send buffer size. */
#define SO_RCVBUF 0x1002 /* Receive buffer. */
#define SO_KEEPALIVE 0x0008 /* Keep connections alive and send SIGPIPE when they die. */
#define SO_OOBINLINE 0x0100 /* Receive out-of-band data in-band. */
#define SO_LINGER 0x0080 /* Block on close of a reliable socket to transmit pending data. */
#define SO_REUSEPORT 0x0200 /* Allow local address and port reuse. */
#define SO_RCVLOWAT 0x1004 /* receive low-water mark */
#define SO_SNDLOWAT 0x1003 /* send low-water mark */
#define SO_RCVTIMEO 0x1006 /* receive timeout */
#define SO_SNDTIMEO 0x1005 /* send timeout */
#else
enum sock_type { enum sock_type {
SOCK_STREAM = 1, SOCK_STREAM = 1,
SOCK_DGRAM = 2, SOCK_DGRAM = 2,
@ -70,10 +101,6 @@ SOCK_SEQPACKET = 5,
SOCK_DCCP = 6, SOCK_DCCP = 6,
SOCK_PACKET = 10, SOCK_PACKET = 10,
}; };
#if defined(__mips__)
#define SOL_SOCKET 0xffff
#else
#define SOL_SOCKET 1 #define SOL_SOCKET 1
#define SO_DEBUG 1 #define SO_DEBUG 1