mirror of
https://github.com/XTXMarkets/ternfs.git
synced 2026-05-07 21:01:48 -05:00
Francesco Mazzoli
6addbdee6a
Initial version really by Pawel, but many changes in between. Big outstanding issues: * span cache reclamation (unbounded memory otherwise...) * bad block service detection and workarounds * corrupted blocks detection and workaround Co-authored-by: Paweł Dziepak <pawel.dziepak@xtxmarkets.com>
65 lines
2.2 KiB
C
65 lines
2.2 KiB
C
#include <asm/unaligned.h>
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#include "bincode.h"
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#include "shuckle.h"
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#include "common.h"
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void eggsfs_write_shuckle_req_header(char* buf, u32 req_len, u8 req_kind) {
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put_unaligned_le32(EGGSFS_SHUCKLE_REQ_PROTOCOL_VERSION, buf); buf += 4;
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// automatically include the kind, much nicer for the caller
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put_unaligned_le32(req_len+1, buf); buf += 4;
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*(u8*)buf = req_kind; buf++;
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}
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int eggsfs_read_shuckle_resp_header(char* buf, u32* resp_len, u8* resp_kind) {
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u32 protocol = get_unaligned_le32(buf); buf += 4;
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if (protocol != EGGSFS_SHUCKLE_RESP_PROTOCOL_VERSION) {
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eggsfs_debug_print("bad shuckle protocol, expected 0x%08x, got 0x%08x", EGGSFS_SHUCKLE_RESP_PROTOCOL_VERSION, protocol);
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return -EINVAL;
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}
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*resp_len = get_unaligned_le32(buf); buf += 4;
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if (*resp_len == 0) {
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eggsfs_debug_print("unexpected zero-length shuckle response (the kind should at least be there)");
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return -EINVAL;
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}
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*resp_kind = *(u8*)buf; buf++;
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eggsfs_debug_print("resp_len=%d, resp_kind=0x%02x", *resp_len, (int)*resp_kind);
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(*resp_len)--; // exclude the kind, it's much nicer for the caller
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return 0;
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}
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int eggsfs_create_shuckle_socket(const char* shuckle_addr, struct socket** sock) {
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int err;
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const char* addr_end;
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u16 port;
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// parse device, which is the shuckle address in 0.0.0.0:0 form (ipv4, port)
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struct sockaddr_in addr;
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addr.sin_family = AF_INET;
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if (in4_pton(shuckle_addr, -1, (u8*)&addr.sin_addr, ':', &addr_end) != 1) {
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err = -EINVAL;
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goto out_err;
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}
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err = kstrtou16(addr_end+1, 10, &port);
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if (err < 0) { goto out_err; }
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addr.sin_port = htons(port);
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eggsfs_debug_print("parsed shuckle addr %pI4:%d", &addr.sin_addr, ntohs(addr.sin_port));
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// create socket
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err = sock_create_kern(&init_net, PF_INET, SOCK_STREAM, IPPROTO_TCP, sock);
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if (err < 0) { goto out_err; }
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// connect
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err = kernel_connect(*sock, (struct sockaddr*)&addr, sizeof(addr), 0);
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if (err < 0) { goto out_connect; }
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eggsfs_debug_print("connected to shuckle");
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return 0;
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out_connect:
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sock_release(*sock);
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out_err:
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eggsfs_debug_print("failed err=%d", err);
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return err;
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}
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