diff options
Diffstat (limited to 'cmd/srv9p')
-rw-r--r-- | cmd/srv9p/CMakeLists.txt | 25 | ||||
-rw-r--r-- | cmd/srv9p/config/config.h | 53 | ||||
-rw-r--r-- | cmd/srv9p/main.c | 116 | ||||
-rw-r--r-- | cmd/srv9p/static/Documentation/x | 1 | ||||
-rw-r--r-- | cmd/srv9p/static/README.md | 1 | ||||
-rw-r--r-- | cmd/srv9p/static9p.c | 242 | ||||
-rw-r--r-- | cmd/srv9p/static9p.h | 47 |
7 files changed, 0 insertions, 485 deletions
diff --git a/cmd/srv9p/CMakeLists.txt b/cmd/srv9p/CMakeLists.txt deleted file mode 100644 index b747882..0000000 --- a/cmd/srv9p/CMakeLists.txt +++ /dev/null @@ -1,25 +0,0 @@ -# cmd/srv9p/CMakeLists.txt - Build script for srv9p test/dev executable -# -# Copyright (C) 2024 Luke T. Shumaker <lukeshu@lukeshu.com> -# SPDX-License-Identifier: AGPL-3.0-or-later - -if (PICO_PLATFORM STREQUAL "host") - -add_executable(srv9p - main.c - static9p.c -) -target_embed_sources(srv9p static.h - static/README.md - static/Documentation/x -) -target_include_directories(srv9p PRIVATE ${CMAKE_CURRENT_BINARY_DIR}) -target_include_directories(srv9p PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/config) -target_link_libraries(srv9p - libcr - libcr_ipc - libmisc - lib9p -) - -endif() diff --git a/cmd/srv9p/config/config.h b/cmd/srv9p/config/config.h deleted file mode 100644 index a184e6f..0000000 --- a/cmd/srv9p/config/config.h +++ /dev/null @@ -1,53 +0,0 @@ -/* config.h - Compile-time configuration for srv9p - * - * Copyright (C) 2024 Luke T. Shumaker <lukeshu@lukeshu.com> - * SPDX-License-Identifier: AGPL-3.0-or-later - */ - -#ifndef _CONFIG_H_ -#define _CONFIG_H_ - -#define CONFIG_NETIO_NUM_CONNS 8 - -#define CONFIG_9P_PORT 564 -/** - * This max-msg-size is sized so that a Twrite message can return - * 8KiB of data. - * - * This is the same as the default in Plan 9 4e's lib9p; it has the - * comment that "24" is "ample room for Twrite/Rread header - * (iounit)". In fact, the Twrite header is only 23 bytes - * ("size[4] Twrite[1] tag[2] fid[4] offset[8] count[4]") and the - * Rread header is even shorter at 11 bytes ("size[4] Rread[1] - * tag[2] count[4]"), so "24" appears to be the size of the Twrite - * header rounded up to a nice round number. - * - * In older versions of 9P ("9P1"), the max message size was - * defined as part of the protocol specification rather than - * negotiated. In Plan 9 1e it was (8*1024)+128, and was bumped to - * (8*1024)+160 in 2e and 3e. - */ -#define CONFIG_9P_MAX_MSG_SIZE ((4*1024)+24) -/** - * Maximum host-data-structure size. A message may be larger in - * unmarshaled-host-structures than marshaled-net-bytes due to (1) - * struct padding, (2) nul-terminator byes for strings. - */ -#define CONFIG_9P_MAX_HOSTMSG_SIZE CONFIG_9P_MAX_MSG_SIZE+16 -#define CONFIG_9P_MAX_FIDS 16 -#define CONFIG_9P_MAX_REQS 2 -#define CONFIG_9P_MAX_ERR_SIZE 128 /* 128 is what Plan 9 4e uses */ -#define CONFIG_9P_ENABLE_9P2000_u -/*#define CONFIG_9P_ENABLE_9P2000_e*/ - -#define CONFIG_COROUTINE_DEFAULT_STACK_SIZE (32*1024) -#define CONFIG_COROUTINE_MEASURE_STACK 1 /* bool */ -#define CONFIG_COROUTINE_PROTECT_STACK 1 /* bool */ -#define CONFIG_COROUTINE_DEBUG 0 /* bool */ -#define CONFIG_COROUTINE_VALGRIND 1 /* bool */ -#define CONFIG_COROUTINE_NUM (1 /* usb_common */ +\ - 1 /* usb_keyboard */ +\ - CONFIG_NETIO_NUM_CONNS /* accept+read */ +\ - (CONFIG_9P_MAX_REQS*CONFIG_NETIO_NUM_CONNS) /* work+write */ ) - -#endif /* _CONFIG_H_ */ diff --git a/cmd/srv9p/main.c b/cmd/srv9p/main.c deleted file mode 100644 index d30c4f9..0000000 --- a/cmd/srv9p/main.c +++ /dev/null @@ -1,116 +0,0 @@ -/* srv9p/main.c - Main entry point for test 9P server - * - * Copyright (C) 2024 Luke T. Shumaker <lukeshu@lukeshu.com> - * SPDX-License-Identifier: AGPL-3.0-or-later - */ - -#include <error.h> -#include <stdio.h> - -#include <lib9p/srv.h> -#include <libcr/coroutine.h> -#include <libhw/generic/net.h> -#include <libhw/host_net.h> - -#include "static9p.h" -#include "static.h" - -/* configuration **************************************************************/ - -#include "config.h" - -#ifndef CONFIG_NETIO_NUM_CONNS - #error config.h must define CONFIG_NETIO_NUM_CONNS -#endif - -/* implementation *************************************************************/ - -#define UNUSED(name) /* name __attribute__((unused)) */ - -/* file tree ******************************************************************/ - -#define FILE_COMMON(NAME) { \ - .vtable = &static_file_vtable, \ - \ - .u_name = "root", .u_num = 0, /* owner user */ \ - .g_name = "root", .g_num = 0, /* owner group */ \ - .m_name = "root", .m_num = 0, /* last-modified-by user */ \ - \ - .pathnum = __COUNTER__, \ - .name = NAME, \ - .perm = 0444, \ - .atime = 1728337905, \ - .mtime = 1728337904, \ - } - -#define DIR_COMMON(NAME) { \ - .vtable = &static_dir_vtable, \ - \ - .u_name = "root", .u_num = 0, /* owner user */ \ - .g_name = "root", .g_num = 0, /* owner group */ \ - .m_name = "root", .m_num = 0, /* last-modified-by user */ \ - \ - .pathnum = __COUNTER__, \ - .name = NAME, \ - .perm = 0555, \ - .atime = 1728337905, \ - .mtime = 1728337904, \ - } - -#define STATIC_FILE(STRNAME, SYMNAME) \ - &((static struct static_file){ \ - ._static_common = FILE_COMMON(STRNAME), \ - .data_start = _binary_static_##SYMNAME##_start, \ - .data_end = _binary_static_##SYMNAME##_end, \ - }) - -static struct static_dir root = { - ._static_common = DIR_COMMON(""), - .members = { - &((static struct static_dir){ - ._static_common = DIR_COMMON("Documentation"), - .members = { - STATIC_FILE("x", Documentation_x), - NULL - }, - }), - STATIC_FILE("README.md", README_md), - NULL, - }, -}; - -static implements_lib9p_srv_file *get_root(struct lib9p_srv_ctx *UNUSED(ctx), char *UNUSED(treename)) { - return &root; -} - -/* main ***********************************************************************/ - -static COROUTINE read_cr(void *_srv) { - struct lib9p_srv *srv = _srv; - assert(srv); - - cr_begin(); - - struct hostnet_tcp_listener listener; - hostnet_tcp_listener_init(&listener, 9000); - - lib9p_srv_read_cr(srv, &listener); - - cr_end(); -} - -int main() { - struct lib9p_srv srv = { - .rootdir = get_root, - }; - - for (int i = 0; i < CONFIG_NETIO_NUM_CONNS; i++) - if (!coroutine_add(read_cr, &srv)) - error(1, 0, "coroutine_add(read_cr, &srv)"); - for (int i = 0; i < 2*CONFIG_NETIO_NUM_CONNS; i++) - if (!coroutine_add(lib9p_srv_write_cr, &srv)) - error(1, 0, "coroutine_add(lib9p_srv_write_cr, &srv)"); - - coroutine_main(); - return 1; -} diff --git a/cmd/srv9p/static/Documentation/x b/cmd/srv9p/static/Documentation/x deleted file mode 100644 index 257cc56..0000000 --- a/cmd/srv9p/static/Documentation/x +++ /dev/null @@ -1 +0,0 @@ -foo diff --git a/cmd/srv9p/static/README.md b/cmd/srv9p/static/README.md deleted file mode 100644 index af5626b..0000000 --- a/cmd/srv9p/static/README.md +++ /dev/null @@ -1 +0,0 @@ -Hello, world! diff --git a/cmd/srv9p/static9p.c b/cmd/srv9p/static9p.c deleted file mode 100644 index 3632c26..0000000 --- a/cmd/srv9p/static9p.c +++ /dev/null @@ -1,242 +0,0 @@ -/* srv9p/static9p.c - Serve static files over 9P - * - * Copyright (C) 2024 Luke T. Shumaker <lukeshu@lukeshu.com> - * SPDX-License-Identifier: AGPL-3.0-or-later - */ - -#include <assert.h> - -#include <libmisc/vcall.h> - -#include "static9p.h" - -#define UNUSED(name) /* name __attribute__((unused)) */ -#define p9_str(cstr) ((struct lib9p_s){ .len = strlen(cstr), .utf8 = cstr }) -#define p9_nulstr ((struct lib9p_s){ .len = 0, .utf8 = NULL }) - -/* common *********************************************************************/ - -static implements_lib9p_srv_file *static_common_clone(implements_lib9p_srv_file *_self, struct lib9p_srv_ctx *ctx) { - _static_common *self = VCALL_SELF(_static_common, implements_lib9p_srv_file, _self); - assert(self); - assert(ctx); - - return self; -} - -static void static_common_free(implements_lib9p_srv_file *_self, struct lib9p_srv_ctx *ctx) { - _static_common *self = VCALL_SELF(_static_common, implements_lib9p_srv_file, _self); - assert(self); - assert(ctx); - - /* do nothing */ -} - -static uint32_t static_common_io(implements_lib9p_srv_file *_self, struct lib9p_srv_ctx *ctx, lib9p_o_t UNUSED(flags)) { - _static_common *self = VCALL_SELF(_static_common, implements_lib9p_srv_file, _self); - assert(self); - assert(ctx); - - return 0; -} - -static void static_common_wstat(implements_lib9p_srv_file *_self, struct lib9p_srv_ctx *ctx, - struct lib9p_stat UNUSED(new)) { - _static_common *self = VCALL_SELF(_static_common, implements_lib9p_srv_file, _self); - assert(self); - assert(ctx); - - lib9p_error(&ctx->basectx, LINUX_EROFS, "read-only part of filesystem"); -} - -static void static_common_remove(implements_lib9p_srv_file *_self, struct lib9p_srv_ctx *ctx) { - _static_common *self = VCALL_SELF(_static_common, implements_lib9p_srv_file, _self); - assert(self); - assert(ctx); - - lib9p_error(&ctx->basectx, LINUX_EROFS, "read-only part of filesystem"); -} - -/* dir ************************************************************************/ - -static struct lib9p_stat static_dir_stat(implements_lib9p_srv_file *_self, struct lib9p_srv_ctx *ctx) { - struct static_dir *self = VCALL_SELF(struct static_dir, implements_lib9p_srv_file, _self); - assert(self); - assert(ctx); - - return (struct lib9p_stat){ - .kern_type = 0, - .kern_dev = 0, - .file_qid = { - .type = LIB9P_QT_DIR, - .vers = 1, - .path = self->pathnum, - }, - .file_mode = LIB9P_DM_DIR | (self->perm & 0555), - .file_atime = self->atime, - .file_mtime = self->mtime, - .file_size = 0, - .file_name = p9_str(self->name), - .file_owner_uid = p9_str(self->u_name), - .file_owner_gid = p9_str(self->g_name), - .file_last_modified_uid = p9_str(self->m_name), - .file_extension = p9_nulstr, - .file_owner_n_uid = self->u_num, - .file_owner_n_gid = self->g_num, - .file_last_modified_n_uid = self->m_num, - }; -} - -static implements_lib9p_srv_file *static_dir_dopen(implements_lib9p_srv_file *_self, struct lib9p_srv_ctx *ctx, - char *childname) { - struct static_dir *self = VCALL_SELF(struct static_dir, implements_lib9p_srv_file, _self); - assert(self); - assert(ctx); - - for (size_t i = 0; self->members[i]; i++) { - implements_lib9p_srv_file *filep = self->members[i]; - struct lib9p_stat stat = VCALL(filep, stat, ctx); - if (lib9p_ctx_has_error(&ctx->basectx)) - break; - lib9p_assert_stat(stat); - if (strcmp(stat.file_name.utf8, childname) == 0) - return filep; - } - lib9p_error(&ctx->basectx, - LINUX_ENOENT, "no such file or directory"); - return NULL; -} - -static implements_lib9p_srv_file *static_dir_dcreate(implements_lib9p_srv_file *_self, struct lib9p_srv_ctx *ctx, - char *UNUSED(childname), - lib9p_dm_t UNUSED(perm), lib9p_o_t UNUSED(flags)) { - struct static_dir *self = VCALL_SELF(struct static_dir, implements_lib9p_srv_file, _self); - assert(self); - assert(ctx); - - lib9p_error(&ctx->basectx, LINUX_EROFS, "read-only part of filesystem"); - return NULL; -} - -static size_t static_dir_dread(implements_lib9p_srv_file *_self, struct lib9p_srv_ctx *ctx, - uint8_t *buf, - uint32_t byte_count, - size_t _obj_offset) { - struct static_dir *self = VCALL_SELF(struct static_dir, implements_lib9p_srv_file, _self); - assert(self); - assert(ctx); - - uint32_t byte_offset = 0; - size_t obj_offset = _obj_offset; - while (self->members[obj_offset]) { - implements_lib9p_srv_file *filep = self->members[obj_offset]; - struct lib9p_stat stat = VCALL(filep, stat, ctx); - if (lib9p_ctx_has_error(&ctx->basectx)) - break; - lib9p_assert_stat(stat); - uint32_t nbytes = lib9p_marshal_stat(&ctx->basectx, byte_count-byte_offset, &stat, - &buf[byte_offset]); - if (!nbytes) { - if (obj_offset == _obj_offset) - lib9p_error(&ctx->basectx, - LINUX_ERANGE, "stat object does not fit into negotiated max message size"); - break; - } - byte_offset += nbytes; - obj_offset++; - } - return obj_offset - _obj_offset; -} - -struct lib9p_srv_file_vtable static_dir_vtable = { - .clone = static_common_clone, - .free = static_common_free, - - .io = static_common_io, - .stat = static_dir_stat, - .wstat = static_common_wstat, - .remove = static_common_remove, - - .dopen = static_dir_dopen, - .dcreate = static_dir_dcreate, - - .dread = static_dir_dread, -}; - -/* file ***********************************************************************/ - -static inline size_t static_file_size(struct static_file *file) { - assert(file); - -#if __unix__ - assert(file->data_start); -#endif - if (!file->data_end) - return file->data_size; - return (size_t)((uintptr_t)file->data_end - (uintptr_t)file->data_start); -} - -static struct lib9p_stat static_file_stat(implements_lib9p_srv_file *_self, struct lib9p_srv_ctx *ctx) { - struct static_file *self = VCALL_SELF(struct static_file, implements_lib9p_srv_file, _self); - assert(self); - assert(ctx); - - return (struct lib9p_stat){ - .kern_type = 0, - .kern_dev = 0, - .file_qid = { - .type = LIB9P_QT_FILE, - .vers = 1, - .path = self->pathnum, - }, - .file_mode = self->perm & 0444, - .file_atime = self->atime, - .file_mtime = self->mtime, - .file_size = (uint64_t)static_file_size(self), - .file_name = p9_str(self->name), - .file_owner_uid = p9_str(self->u_name), - .file_owner_gid = p9_str(self->g_name), - .file_last_modified_uid = p9_str(self->m_name), - .file_extension = p9_nulstr, - .file_owner_n_uid = self->u_num, - .file_owner_n_gid = self->g_num, - .file_last_modified_n_uid = self->m_num, - }; -} - -static uint32_t static_file_pread(implements_lib9p_srv_file *_self, struct lib9p_srv_ctx *ctx, - void *buf, - uint32_t byte_count, - uint64_t byte_offset) { - struct static_file *self = VCALL_SELF(struct static_file, implements_lib9p_srv_file, _self); - assert(self); - assert(ctx); - - size_t data_size = static_file_size(self); - - if (byte_offset > (uint64_t)data_size) { - lib9p_error(&ctx->basectx, - LINUX_EINVAL, "offset is past end-of-file length"); - return 0; - } - - size_t beg_off = (size_t)byte_offset; - size_t end_off = beg_off + (size_t)byte_count; - if (end_off > data_size) - end_off = data_size; - memcpy(buf, &self->data_start[beg_off], end_off-beg_off); - return (uint32_t)(end_off-beg_off); -} - -struct lib9p_srv_file_vtable static_file_vtable = { - .clone = static_common_clone, - .free = static_common_free, - - .io = static_common_io, - .stat = static_file_stat, - .wstat = static_common_wstat, - .remove = static_common_remove, - - .pread = static_file_pread, - .pwrite = NULL, -}; diff --git a/cmd/srv9p/static9p.h b/cmd/srv9p/static9p.h deleted file mode 100644 index 7a3d476..0000000 --- a/cmd/srv9p/static9p.h +++ /dev/null @@ -1,47 +0,0 @@ -/* srv9p/static9p.h - Serve static files over 9P - * - * Copyright (C) 2024 Luke T. Shumaker <lukeshu@lukeshu.com> - * SPDX-License-Identifier: AGPL-3.0-or-later - */ - -#ifndef _SRV9P_STATIC9P_H_ -#define _SRV9P_STATIC9P_H_ - -#include <lib9p/srv.h> - -typedef struct { - implements_lib9p_srv_file; - - char *u_name; - uint32_t u_num; - char *g_name; - uint32_t g_num; - char *m_name; - uint32_t m_num; - - uint64_t pathnum; - char *name; - lib9p_dm_t perm; - uint32_t atime, mtime; -} _static_common; - -struct static_dir { - _static_common; - - /* NULL-terminated */ - implements_lib9p_srv_file *members[]; -}; - - -struct static_file { - _static_common; - - char *data_start; /* must not be NULL */ - char *data_end; /* may be NULL, in which case data_size is used */ - size_t data_size; /* only used if .data_end==NULL */ -}; - -extern struct lib9p_srv_file_vtable static_dir_vtable; -extern struct lib9p_srv_file_vtable static_file_vtable; - -#endif /* _SRV9P_STATIC9P_H_ */ |