Support devicemapper

Signed-off-by: WangFengTu <wangfengtu@huawei.com>

src/api/image_client/isula_image.proto

@@ -141,11 +141,9 @@ message LoadImageResponose {
 message GraphdriverStatusRequest {}
 
 message GraphdriverStatusResponse {
-    string backing_fs = 1;
+    string status = 1;
-    bool supports_d_type = 2;
+    string errmsg = 2;
-    bool native_overlay_diff = 3;
+    uint32 cc = 3;
-    string errmsg = 4;
-    uint32 cc = 5;
 }
 
 message ContainerFsUsageRequest {

src/api/services/containers/container.proto

@@ -376,6 +376,8 @@ message InfoResponse {
     string http_proxy = 20;
     string https_proxy = 21;
     string no_proxy = 22;
+    string driver_name = 23;
+    string driver_status = 24;
 }
 
 message UpdateRequest {

src/cmd/isula/information/info.c

@@ -26,6 +26,31 @@ const char g_cmd_info_usage[] = "info";
 
 struct client_arguments g_cmd_info_args = {};
 
+static void print_with_space(const char *info)
+{
+    size_t i = 0;
+    size_t size = 0;
+    bool print_space = true;
+
+    if (info == NULL) {
+        return;
+    }
+
+    size = strlen(info);
+    for (i = 0; i < size; i++) {
+        if (print_space) {
+            printf(" ");
+            print_space = false;
+        }
+        if (info[i] == '\n') {
+            print_space = true;
+        }
+        printf("%c", info[i]);
+    }
+
+    return;
+}
+
 static void client_info_server(const struct isula_info_response *response)
 {
     printf("Containers: %u\n", (unsigned int)(response->containers_num));
@@ -36,6 +61,12 @@ static void client_info_server(const struct isula_info_response *response)
     if (response->version != NULL) {
         printf("Server Version: %s\n", response->version);
     }
+    if (response->driver_name != NULL) {
+        printf("Storage Driver: %s\n", response->driver_name);
+    }
+    if (response->driver_status != NULL) {
+        print_with_space(response->driver_status);
+    }
     if (response->logging_driver != NULL) {
         printf("Logging Driver: %s\n", response->logging_driver);
     }

src/connect/client/grpc/grpc_containers_client.cc

@@ -105,6 +105,7 @@ public:
         }
         response->total_mem = gresponse->total_mem();
         get_proxy_info_from_grpc(response, gresponse);
+        get_driver_info_from_grpc(response, gresponse);
 
         return 0;
     }
@@ -150,6 +151,16 @@ private:
             response->no_proxy = util_strdup_s(gresponse->no_proxy().c_str());
         }
     }
+
+    void get_driver_info_from_grpc(isula_info_response *response, InfoResponse *gresponse)
+    {
+        if (!gresponse->driver_name().empty()) {
+            response->driver_name = util_strdup_s(gresponse->driver_name().c_str());
+        }
+        if (!gresponse->driver_status().empty()) {
+            response->driver_status = util_strdup_s(gresponse->driver_status().c_str());
+        }
+    }
 };
 
 class ContainerCreate : public ClientBase<ContainerService, ContainerService::Stub, isula_create_request, CreateRequest,

src/connect/client/grpc/grpc_isula_image_client.cc

@@ -843,11 +843,9 @@ public:
         }
         resp->server_errono = gresp->cc();
 
-        if (!gresp->backing_fs().empty()) {
+        if (!gresp->status().empty()) {
-            resp->backing_fs = util_strdup_s(gresp->backing_fs().c_str());
+            resp->status = util_strdup_s(gresp->status().c_str());
         }
-        resp->supports_d_type = gresp->supports_d_type();
-        resp->native_overlay_diff = gresp->native_overlay_diff();
         return 0;
     }
 

src/connect/client/isula_image_connect.c

@@ -463,8 +463,8 @@ void free_isula_storage_status_response(struct isula_storage_status_response *pt
     if (ptr == NULL) {
         return;
     }
-    free(ptr->backing_fs);
+    free(ptr->status);
-    ptr->backing_fs = NULL;
+    ptr->status = NULL;
     free(ptr->errmsg);
     ptr->errmsg = NULL;
     free(ptr);

src/connect/client/isula_image_connect.h

@@ -223,9 +223,7 @@ struct isula_storage_status_request {
 };
 
 struct isula_storage_status_response {
-    char *backing_fs;
+    char *status;
-    bool supports_d_type;
-    bool native_overlay_diff;
 
     char *errmsg;
     uint32_t cc;

src/connect/service/grpc/grpc_containers_service.h

@@ -218,6 +218,8 @@ private:
 
     int pack_proxy_info_to_grpc(const host_info_response *response, InfoResponse *gresponse);
 
+    int pack_driver_info_to_grpc(const host_info_response *response, InfoResponse *gresponse);
+
     int logs_request_from_grpc(const LogsRequest *grequest, struct isulad_logs_request **request);
 };
 

src/connect/service/grpc/grpc_containers_service_private.cc

@@ -110,6 +110,10 @@ int ContainerServiceImpl::info_response_to_grpc(const host_info_response *respon
         return -1;
     }
 
+    if (pack_driver_info_to_grpc(response, gresponse)) {
+        return -1;
+    }
+
     return 0;
 }
 
@@ -1109,4 +1113,20 @@ int ContainerServiceImpl::pack_proxy_info_to_grpc(const host_info_response *resp
     return 0;
 }
 
+int ContainerServiceImpl::pack_driver_info_to_grpc(const host_info_response *response, InfoResponse *gresponse)
+{
+    if (response == nullptr) {
+        gresponse->set_cc(ISULAD_ERR_MEMOUT);
+        return 0;
+    }
 
+    if (response->driver_name != nullptr) {
+        gresponse->set_driver_name(response->driver_name);
+    }
+
+    if (response->driver_status != nullptr) {
+        gresponse->set_driver_status(response->driver_status);
+    }
+
+    return 0;
+}

src/cutils/utils_string.c

@@ -18,6 +18,7 @@
 #include <ctype.h>
 #include <stdlib.h>
 #include <string.h>
+#include <limits.h>
 #include "utils.h"
 #include "log.h"
 
@@ -266,6 +267,30 @@ int util_parse_byte_size_string(const char *s, int64_t *converted)
     return ret;
 }
 
+int util_parse_percent_string(const char *s, long *converted)
+{
+    char *dup = NULL;
+
+    if (s == NULL || converted == NULL || s[0] == 0 || strlen(s) < 2 || s[strlen(s) - 1] != '%') {
+        return -EINVAL;
+    }
+    dup = util_strdup_s(s);
+    if (dup == NULL) {
+        return -ENOMEM;
+    }
+    dup[strlen(dup) - 1] = 0;
+
+    *converted = strtol(dup, NULL, 10);
+    if ((errno == ERANGE && (*converted == LONG_MAX || *converted == LONG_MIN)) ||
+        (errno != 0 && *converted == 0) || *converted < 0 || *converted >= 100) {
+        free(dup);
+        return -EINVAL;
+    }
+
+    free(dup);
+    return 0;
+}
+
 static char **util_shrink_array(char **orig_array, size_t new_size)
 {
     char **new_array = NULL;

src/cutils/utils_string.h

@@ -35,6 +35,8 @@ char *strings_to_upper(const char *str);
 
 int util_parse_byte_size_string(const char *s, int64_t *converted);
 
+int util_parse_percent_string(const char *s, long *converted);
+
 // Breaks src_str into an array of string according to _sep,
 // note that two or more contiguous delimiter bytes  is considered to be a single delimiter
 char **util_string_split(const char *src_str, char _sep);

src/image/image.c

@@ -1745,6 +1745,8 @@ void free_im_storage_status_response(im_storage_status_response *ptr)
     }
     free(ptr->backing_fs);
     ptr->backing_fs = NULL;
+    free(ptr->status);
+    ptr->status = NULL;
     free(ptr);
 }
 

src/image/image.h

@@ -55,8 +55,7 @@ typedef struct {
 
 typedef struct {
     char *backing_fs;
-    bool supports_d_type;
+    char *status;
-    bool native_overlay_diff;
 } im_storage_status_response;
 
 typedef struct {

src/image/oci/global_config.c

@@ -58,6 +58,12 @@ static int pack_global_graph_driver(const char * const *options, bool ignore_sto
         add_array_kv(params, PARAM_NUM, &i, options[GB_OPTION_DRIVER_OPTIONS], *p);
     }
 
+    if (strcmp(graph_driver, "devicemapper") == 0) {
+        // option "test=false" is used when devicemapper thinpool is created automatically by iSulad-kit.
+        // Make "test" always be true to avoid config check as we always create thinpool manually.
+        add_array_kv(params, PARAM_NUM, &i, options[GB_OPTION_DRIVER_OPTIONS], "test=true");
+    }
+
     ret = 0;
     *count = i;
 out:

src/image/oci/isula_storage_status.c

@@ -20,11 +20,58 @@
 #include "utils.h"
 #include "log.h"
 
-static void pack_im_response(const struct isula_storage_status_response *iresp, im_storage_status_response *resp)
+// format: [status xx: val]
+static int get_graphdriver_status_line_value(const char *line, char **start, char **end)
 {
-    resp->backing_fs = util_strdup_s(iresp->backing_fs);
+    char *pstart = NULL;
-    resp->supports_d_type = iresp->supports_d_type;
+    char *pend = NULL;
-    resp->native_overlay_diff = iresp->native_overlay_diff;
+
+    pstart = strchr(line, ':');
+    if (pstart == NULL) {
+        ERROR("Invalid output: %s", line);
+        return -1;
+    }
+    pstart++;
+    if (*pstart != ' ') {
+        ERROR("Invalid output: %s", line);
+        return -1;
+    }
+    pstart++;
+
+    pend = strchr(pstart, '\n');
+    if (pend == NULL) {
+        ERROR("Invalid output: %s", pstart);
+        return -1;
+    }
+    *pend++ = '\0';
+
+    *start = pstart;
+    *end = pend;
+    return 0;
+}
+
+static int pack_im_response(const struct isula_storage_status_response *iresp, im_storage_status_response *resp)
+{
+    char *pstart = NULL;
+    char *pend = NULL;
+
+    if (iresp->status == NULL) {
+        ERROR("Storage status response status NULL");
+        isulad_set_error_message("Storage status response NULL");
+        return -1;
+    }
+
+    resp->status = util_strdup_s(iresp->status);
+
+    // Backing Filesystem: extfs
+    if (get_graphdriver_status_line_value(iresp->status, &pstart, &pend) != 0) {
+        ERROR("Get backing filesystem from status failed. status:%s", iresp->status);
+        isulad_set_error_message("Get backing filesystem from status failed");
+        return -1;
+    }
+    resp->backing_fs = util_strdup_s(pstart);
+
+    return 0;
 }
 
 int isula_do_storage_status(im_storage_status_response *resp)
@@ -71,7 +118,10 @@ int isula_do_storage_status(im_storage_status_response *resp)
         ret = -1;
         goto out;
     }
-    pack_im_response(iresp, resp);
+    ret = pack_im_response(iresp, resp);
+    if (ret != 0) {
+        goto out;
+    }
 
 out:
     free_isula_storage_status_response(iresp);

src/image/oci/oci_common_operators.c

@@ -58,73 +58,6 @@ bool oci_detect(const char *image_name)
     return oci_image_exist(image_name);
 }
 
-// format: [status xx: val]
-static int get_graphdriver_status_line_value(const char *line, char **start, char **end)
-{
-    char *pstart = NULL;
-    char *pend = NULL;
-
-    pstart = strchr(line, ':');
-    if (pstart == NULL) {
-        ERROR("Invalid output: %s", line);
-        return -1;
-    }
-    pstart++;
-    if (*pstart != ' ') {
-        ERROR("Invalid output: %s", line);
-        return -1;
-    }
-    pstart++;
-
-    pend = strchr(pstart, '\n');
-    if (pend == NULL) {
-        ERROR("Invalid output: %s", pstart);
-        return -1;
-    }
-    *pend++ = '\0';
-
-    *start = pstart;
-    *end = pend;
-    return 0;
-}
-
-int pack_storage_status_response(const char *stdout_buffer, im_storage_status_response *resp)
-{
-    char *pstart = NULL;
-    char *pend = NULL;
-    int nret = -1;
-
-    // Backing Filesystem: extfs
-    if (get_graphdriver_status_line_value(stdout_buffer, &pstart, &pend) != 0) {
-        goto free_out;
-    }
-    resp->backing_fs = util_strdup_s(pstart);
-
-    // Supports d_type: true
-    if (get_graphdriver_status_line_value(pend, &pstart, &pend) != 0) {
-        goto free_out;
-    }
-    nret = util_str_to_bool(pstart, &resp->supports_d_type);
-    if (nret < 0) {
-        ERROR("Invalid output: %s", pstart);
-        goto free_out;
-    }
-
-    // Native Overlay Diff: true
-    if (get_graphdriver_status_line_value(pend, &pstart, &pend) != 0) {
-        goto free_out;
-    }
-    nret = util_str_to_bool(pstart, &resp->native_overlay_diff);
-    if (nret < 0) {
-        ERROR("Invalid output: %s", pstart);
-        goto free_out;
-    }
-    nret = 0;
-free_out:
-
-    return nret;
-}
-
 char *get_last_part(char **parts)
 {
     char *last_part = NULL;

src/image/oci/oci_common_operators.h

@@ -24,7 +24,6 @@
 extern "C" {
 #endif
 
-int pack_storage_status_response(const char *stdout_buffer, im_storage_status_response *resp);
 char *oci_normalize_image_name(const char *name);
 
 bool oci_detect(const char *image_name);

src/json/schema/schema/host/info-response.json

@@ -62,6 +62,12 @@
             "no_proxy": {
                 "type": "string"
             },
+            "driver_name": {
+                "type": "string"
+            },
+            "driver_status": {
+                "type": "string"
+            },
             "cc": {
                 "type": "uint32"
             },

src/libisula.h

@@ -529,6 +529,8 @@ struct isula_info_response {
     char *http_proxy;
     char *https_proxy;
     char *no_proxy;
+    char *driver_name;
+    char *driver_status;
     uint32_t total_mem;
     uint32_t containers_num;
     uint32_t c_running;

src/services/execution/execute/execution_information.c

@@ -198,6 +198,8 @@ static int isulad_info_cb(const host_info_request *request, host_info_response *
     struct utsname u;
     im_image_count_request *im_request = NULL;
     char *rootpath = NULL;
+    char *graph_driver = NULL;
+    struct graphdriver_status *driver_status = NULL;
 
     DAEMON_CLEAR_ERRMSG();
 
@@ -228,6 +230,19 @@ static int isulad_info_cb(const host_info_request *request, host_info_response *
     }
 #ifdef ENABLE_OCI_IMAGE
     im_request->type = util_strdup_s(IMAGE_TYPE_OCI);
+
+    graph_driver = conf_get_isulad_storage_driver();
+    if (graph_driver == NULL) {
+        ERROR("Failed to get graph driver name info!");
+        goto pack_response;
+    }
+
+    driver_status = graphdriver_get_status();
+    if (driver_status == NULL) {
+        ERROR("Failed to get graph driver status info!");
+        cc = ISULAD_ERR_EXEC;
+        goto pack_response;
+    }
 #endif
     images_num = im_get_image_count(im_request);
 
@@ -308,12 +323,18 @@ static int isulad_info_cb(const host_info_request *request, host_info_response *
     (*response)->http_proxy = util_strdup_s(http_proxy);
     (*response)->https_proxy = util_strdup_s(https_proxy);
     (*response)->no_proxy = util_strdup_s(no_proxy);
+#ifdef ENABLE_OCI_IMAGE
+    (*response)->driver_name = util_strdup_s(graph_driver);
+    (*response)->driver_status = util_strdup_s(driver_status->status);
+#endif
 
 pack_response:
     if (*response != NULL) {
         (*response)->cc = cc;
     }
     free(rootpath);
+    free(graph_driver);
+    free_graphdriver_status(driver_status);
     free(huge_page_size);
     free(operating_system);
     free_im_image_count_request(im_request);

src/services/graphdriver/CMakeLists.txt

@@ -1,14 +1,17 @@
 # get current directory sources files
 aux_source_directory(${CMAKE_CURRENT_SOURCE_DIR} local_graphdriver_srcs)
 add_subdirectory(overlay2)
+add_subdirectory(devmapper)
 
 set(GRAPHDRIVER_SRCS
     ${local_graphdriver_srcs}
     ${OVERLAY2_SRCS}
+    ${DEVMAPPER_SRCS}
     PARENT_SCOPE
     )
 set(GRAPHDRIVER_INCS
     ${CMAKE_CURRENT_SOURCE_DIR}
     ${CMAKE_CURRENT_SOURCE_DIR}/overlay2
+    ${CMAKE_CURRENT_SOURCE_DIR}/devmapper
     PARENT_SCOPE
     )

src/services/graphdriver/devmapper/CMakeLists.txt

@@ -0,0 +1,7 @@
+# get current directory sources files
+aux_source_directory(${CMAKE_CURRENT_SOURCE_DIR} local_devmapper_srcs)
+
+set(DEVMAPPER_SRCS
+    ${local_devmapper_srcs}
+    PARENT_SCOPE
+    )

src/services/graphdriver/devmapper/driver_devmapper.c

@@ -0,0 +1,94 @@
+/******************************************************************************
+* Copyright (c) Huawei Technologies Co., Ltd. 2020. All rights reserved.
+* iSulad licensed under the Mulan PSL v1.
+* You can use this software according to the terms and conditions of the Mulan PSL v1.
+* You may obtain a copy of Mulan PSL v1 at:
+*     http://license.coscl.org.cn/MulanPSL
+* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR
+* IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY OR FIT FOR A PARTICULAR
+* PURPOSE.
+* See the Mulan PSL v1 for more details.
+* Author: wangfengtu
+* Create: 2020-01-19
+* Description: provide devicemapper graphdriver function definition
+******************************************************************************/
+#include "driver_devmapper.h"
+#include <string.h>
+#include <stdlib.h>
+#include <limits.h>
+
+#include "libisulad.h"
+#include "utils.h"
+
+#define DM_LOG_FATAL 2
+#define DM_LOG_DEBUG 7
+
+int devmapper_init(struct graphdriver *driver)
+{
+    return 0;
+}
+
+bool devmapper_is_quota_options(struct graphdriver *driver, const char *option)
+{
+    return false;
+}
+
+int devmapper_parse_options(struct graphdriver *driver, const char **options, size_t options_len)
+{
+    size_t i = 0;
+
+    for (i = 0; options != NULL && i < options_len; i++) {
+        char *dup = NULL;
+        char *p = NULL;
+        char *val = NULL;
+        int ret = 0;
+
+        dup = util_strdup_s(options[i]);
+        if (dup == NULL) {
+            isulad_set_error_message("Out of memory");
+            return -1;
+        }
+        p = strchr(dup, '=');
+        if (!p) {
+            isulad_set_error_message("Unable to parse key/value option: '%s'", dup);
+            free(dup);
+            return -1;
+        }
+        *p = '\0';
+        val = p + 1;
+        if (strcasecmp(dup, "dm.fs") == 0) {
+            if (strcmp(val, "ext4")) {
+                isulad_set_error_message("Invalid filesystem: '%s': not supported", val);
+                ret = -1;
+            }
+        } else if (strcasecmp(dup, "dm.thinpooldev") == 0) {
+            if (!strcmp(val, "")) {
+                isulad_set_error_message("Invalid thinpool device, it must not be empty");
+                ret = -1;
+            }
+        } else if (strcasecmp(dup, "dm.min_free_space") == 0) {
+            long converted = 0;
+            ret = util_parse_percent_string(val, &converted);
+            if (ret != 0) {
+                isulad_set_error_message("Invalid min free space: '%s': %s", val, strerror(-ret));
+            }
+        } else if (strcasecmp(dup, "dm.basesize") == 0) {
+            int64_t converted = 0;
+            ret = util_parse_byte_size_string(val, &converted);
+            if (ret != 0) {
+                isulad_set_error_message("Invalid size: '%s': %s", val, strerror(-ret));
+            }
+        } else if (strcasecmp(dup, "dm.mkfsarg") == 0 || strcasecmp(dup, "dm.mountopt") == 0) {
+            /* We have no way to check validation here, validation is checked when using them. */
+        } else {
+            isulad_set_error_message("devicemapper: unknown option: '%s'", dup);
+            ret = -1;
+        }
+        free(dup);
+        if (ret != 0) {
+            return ret;
+        }
+    }
+
+    return 0;
+}

src/services/graphdriver/devmapper/driver_devmapper.h

@@ -0,0 +1,34 @@
+/******************************************************************************
+* Copyright (c) Huawei Technologies Co., Ltd. 2020. All rights reserved.
+* iSulad licensed under the Mulan PSL v1.
+* You can use this software according to the terms and conditions of the Mulan PSL v1.
+* You may obtain a copy of Mulan PSL v1 at:
+*     http://license.coscl.org.cn/MulanPSL
+* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR
+* IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY OR FIT FOR A PARTICULAR
+* PURPOSE.
+* See the Mulan PSL v1 for more details.
+* Author: wangfengtu
+* Create: 2020-01-19
+* Description: provide devicemapper graphdriver function definition
+******************************************************************************/
+#ifndef __GRAPHDRIVER_DEVMAPPER_H
+#define __GRAPHDRIVER_DEVMAPPER_H
+
+#include "driver.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+int devmapper_init(struct graphdriver *driver);
+
+int devmapper_parse_options(struct graphdriver *driver, const char **options, size_t options_len);
+
+bool devmapper_is_quota_options(struct graphdriver *driver, const char *option);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif

src/services/graphdriver/driver.c

@@ -20,6 +20,7 @@
 #include <linux/limits.h>
 
 #include "driver_overlay2.h"
+#include "driver_devmapper.h"
 #include "utils.h"
 #include "libisulad.h"
 #include "log.h"
@@ -35,8 +36,18 @@ static const struct graphdriver_ops g_overlay2_ops = {
     .is_quota_options = overlay2_is_quota_options,
 };
 
+/* devicemapper */
+#define DRIVER_DEVMAPPER_NAME "devicemapper"
+
+static const struct graphdriver_ops g_devmapper_ops = {
+    .init = devmapper_init,
+    .parse_options = devmapper_parse_options,
+    .is_quota_options = devmapper_is_quota_options,
+};
+
 static struct graphdriver g_drivers[] = {
-    {.name = DRIVER_OVERLAY2_NAME, .ops = &g_overlay2_ops}
+    {.name = DRIVER_OVERLAY2_NAME, .ops = &g_overlay2_ops},
+    {.name = DRIVER_DEVMAPPER_NAME, .ops = &g_devmapper_ops}
 };
 
 static const size_t g_numdrivers = sizeof(g_drivers) / sizeof(struct graphdriver);
@@ -101,8 +112,7 @@ struct graphdriver_status *graphdriver_get_status(void)
     }
 
     status->backing_fs = util_strdup_s(resp->backing_fs);
-    status->supports_d_type = resp->supports_d_type;
+    status->status = util_strdup_s(resp->status);
-    status->native_overlay_diff = resp->native_overlay_diff;
 
     ret = 0;
 free_out:
@@ -178,6 +188,7 @@ void free_graphdriver_status(struct graphdriver_status *status)
         return;
     }
     free(status->backing_fs);
+    free(status->status);
     free(status);
 }
 

src/services/graphdriver/driver.h

@@ -41,8 +41,7 @@ struct graphdriver {
 
 struct graphdriver_status {
     char *backing_fs;
-    bool supports_d_type;
+    char *status;
-    bool native_overlay_diff;
 };
 
 struct graphdriver *graphdriver_init(const char *name, char **storage_opts, size_t storage_opts_len);