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新增网络socket的系统调用接口 (#247)

Browse Source 
1.修复spinlock忘记恢复rflags的问题
2.WaitQueue增加wakeup_all的功能
3.完善tcp,udp,raw socket
4.把PollStatus结构体改为使用bitflags
5.新增iovec结构体
6.完成网络的系统调用
7.在bootstrap里面添加dnsmasq bridge-utils iptables

---------

Co-authored-by: guanjinquan <1666320330@qq.com>
This commit is contained in:
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2023-04-19 18:05:02 +08:00
committed by GitHub
parent 8fd71f2772
commit cde5492f72
33 changed files with 2535 additions and 240 deletions
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37
kernel/src/syscall/syscall.c
View File

@ -22,6 +22,21 @@ extern uint64_t sys_sigaction(struct pt_regs *regs);
extern uint64_t sys_rt_sigreturn(struct pt_regs *regs);
extern uint64_t sys_getpid(struct pt_regs *regs);
extern uint64_t sys_sched(struct pt_regs *regs);
extern int sys_dup(int oldfd);
extern int sys_dup2(int oldfd, int newfd);
extern uint64_t sys_socket(struct pt_regs *regs);
extern uint64_t sys_setsockopt(struct pt_regs *regs);
extern uint64_t sys_getsockopt(struct pt_regs *regs);
extern uint64_t sys_connect(struct pt_regs *regs);
extern uint64_t sys_bind(struct pt_regs *regs);
extern uint64_t sys_sendto(struct pt_regs *regs);
extern uint64_t sys_recvfrom(struct pt_regs *regs);
extern uint64_t sys_recvmsg(struct pt_regs *regs);
extern uint64_t sys_listen(struct pt_regs *regs);
extern uint64_t sys_shutdown(struct pt_regs *regs);
extern uint64_t sys_accept(struct pt_regs *regs);
extern uint64_t sys_getsockname(struct pt_regs *regs);
extern uint64_t sys_getpeername(struct pt_regs *regs);
/**
* @brief 关闭文件系统调用
@ -179,9 +194,9 @@ uint64_t sys_brk(struct pt_regs *regs)
// kdebug("sys_brk input= %#010lx , new_brk= %#010lx bytes current_pcb->mm->brk_start=%#018lx
// current->end_brk=%#018lx", regs->r8, new_brk, current_pcb->mm->brk_start, current_pcb->mm->brk_end);
struct mm_struct *mm = current_pcb->mm;
if (new_brk < mm->brk_start || new_brk> new_brk >= current_pcb->addr_limit)
if (new_brk < mm->brk_start || new_brk > new_brk >= current_pcb->addr_limit)
return mm->brk_end;
if (mm->brk_end == new_brk)
return new_brk;
@ -392,9 +407,6 @@ uint64_t sys_pipe(struct pt_regs *regs)
extern uint64_t sys_mkdir(struct pt_regs *regs);
extern int sys_dup(int oldfd);
extern int sys_dup2(int oldfd, int newfd);
system_call_t system_call_table[MAX_SYSTEM_CALL_NUM] = {
[0] = system_call_not_exists,
[1] = sys_put_string,
@ -426,5 +438,18 @@ system_call_t system_call_table[MAX_SYSTEM_CALL_NUM] = {
[27] = sys_sched,
[28] = sys_dup,
[29] = sys_dup2,
[30 ... 255] = system_call_not_exists,
[30] = sys_socket,
[31] = sys_setsockopt,
[32] = sys_getsockopt,
[33] = sys_connect,
[34] = sys_bind,
[35] = sys_sendto,
[36] = sys_recvfrom,
[37] = sys_recvmsg,
[38] = sys_listen,
[39] = sys_shutdown,
[40] = sys_accept,
[41] = sys_getsockname,
[42] = sys_getpeername,
[43 ... 255] = system_call_not_exists,
};

14
kernel/src/syscall/syscall_num.h
View File

@ -41,5 +41,19 @@
#define SYS_SCHED 27 // 让系统立即运行调度器（该系统调用不能由运行在Ring3的程序发起）
#define SYS_DUP 28
#define SYS_DUP2 29
#define SYS_SOCKET 30 // 创建一个socket
#define SYS_SETSOCKOPT 31 // 设置socket的选项
#define SYS_GETSOCKOPT 32 // 获取socket的选项
#define SYS_CONNECT 33 // 连接到一个socket
#define SYS_BIND 34 // 绑定一个socket
#define SYS_SENDTO 35 // 向一个socket发送数据
#define SYS_RECVFROM 36 // 从一个socket接收数据
#define SYS_RECVMSG 37 // 从一个socket接收消息
#define SYS_LISTEN 38 // 监听一个socket
#define SYS_SHUTDOWN 39 // 关闭socket
#define SYS_ACCEPT 40 // 接受一个socket连接
#define SYS_GETSOCKNAME 41 // 获取socket的名字
#define SYS_GETPEERNAME 42 // 获取socket的对端名字
#define SYS_AHCI_END_REQ 255 // AHCI DMA请求结束end_request的系统调用