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-rw-r--r--lib/ipmi_cfgp.c542
1 files changed, 542 insertions, 0 deletions
diff --git a/lib/ipmi_cfgp.c b/lib/ipmi_cfgp.c
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+++ b/lib/ipmi_cfgp.c
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+/*
+ * Copyright (c) 2016 Pentair Technical Products. All right reserved
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * Redistribution of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * Redistribution in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * Neither the name of Pentair Technical Products or the names of
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+ * PENTAIR TECHNICAL SOLUTIONS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <malloc.h>
+#include <string.h>
+
+#include <ipmitool/helper.h>
+#include <ipmitool/ipmi_cfgp.h>
+#include <ipmitool/log.h>
+
+/* ipmi_cfgp_init initialize configuration parameter context
+ * @param ctx context to initialize
+ * @param set array of parameter descriptors
+ * @param count amount of descriptors supplied
+ * @param handler function to do real job on parameters from the set
+ * @param priv private data for the handler
+ */
+int
+ipmi_cfgp_init(struct ipmi_cfgp_ctx *ctx, const struct ipmi_cfgp *set,
+ unsigned int count, const char *cmdname,
+ ipmi_cfgp_handler_t handler, void *priv)
+{
+ if (ctx == NULL || set == NULL || handler == NULL || !cmdname) {
+ return -1;
+ }
+
+ memset(ctx, 0, sizeof(struct ipmi_cfgp_ctx));
+
+ ctx->set = set;
+ ctx->count = count;
+ ctx->cmdname = cmdname;
+ ctx->handler = handler;
+ ctx->priv = priv;
+
+ return 0;
+}
+
+/* ipmi_cfgp_uninit destroy data list attached to context
+ * @param ctx parameter context to clear
+ * @returns 0 -- list destroyed
+ * -1 -- ctx is NULL
+ */
+int
+ipmi_cfgp_uninit(struct ipmi_cfgp_ctx *ctx)
+{
+ struct ipmi_cfgp_data *d;
+
+ if (ctx == NULL) {
+ return -1;
+ }
+
+ while (ctx->v) {
+ d = ctx->v;
+ ctx->v = d->next;
+ free(d);
+ d = NULL;
+ }
+
+ return 0;
+}
+
+/* lookup_cfgp -- find a parameter in a set*/
+static const struct ipmi_cfgp *
+lookup_cfgp(const struct ipmi_cfgp_ctx *ctx, const char *name)
+{
+ const struct ipmi_cfgp *p;
+ int i;
+
+ for (i = 0; i < ctx->count; i++) {
+ p = &ctx->set[i];
+
+ if (p->name && !strcasecmp(p->name, name)) {
+ return p;
+ }
+ }
+
+ return NULL;
+}
+
+/* ipmi_cfgp_parse_sel parse parameter selector
+ * (parameter ID, set selector, block selector) from cmdline.
+ *
+ * @param ctx configuration parameter context to use
+ * @param argc elements left in argv
+ * @param argv array of arguments
+ * @param sel where to store parsed selector
+ *
+ * @returns >=0 number of argv elements used
+ * <0 error
+ */
+int
+ipmi_cfgp_parse_sel(struct ipmi_cfgp_ctx *ctx,
+ int argc, const char **argv, struct ipmi_cfgp_sel *sel)
+{
+ const struct ipmi_cfgp *p;
+
+ if (ctx == NULL || argv == NULL || sel == NULL) {
+ return -1;
+ }
+
+ sel->param = -1;
+ sel->set = -1;
+ sel->block = -1;
+
+ if (argc == 0) {
+ /* no parameter specified, good for print, save */
+ return 0;
+ }
+
+ p = lookup_cfgp(ctx, argv[0]);
+ if (p == NULL) {
+ lprintf(LOG_ERR, "invalid parameter");
+ return -1;
+ }
+
+ sel->param = p - ctx->set;
+ sel->set = p->is_set ? -1 : 0;
+ sel->block = p->has_blocks ? -1 : 0;
+
+ if (argc == 1 || !p->is_set) {
+ /* No set and block selector applicable or specified */
+ return 1;
+ }
+
+ if (str2int(argv[1], &sel->set)
+ || sel->set < 0
+ || (sel->set == 0 && p->first_set)) {
+ lprintf(LOG_ERR, "invalid set selector");
+ return -1;
+ }
+
+ if (argc == 2 || !p->has_blocks) {
+ /* No block selector applicable or specified */
+ return 2;
+ }
+
+ if (str2int(argv[2], &sel->block)
+ || sel->block < 0
+ || (sel->block == 0 && p->first_block)) {
+ lprintf(LOG_ERR, "invalid block selector");
+ return -1;
+ }
+
+ return 3;
+}
+
+/* cfgp_add_data adds block of data to list in the configuration
+ * parameter context
+ *
+ * @param ctx context to add data to
+ * @param data parameter data
+ */
+static void
+cfgp_add_data(struct ipmi_cfgp_ctx *ctx, struct ipmi_cfgp_data *data)
+{
+ struct ipmi_cfgp_data **pprev = &ctx->v;
+
+ data->next = NULL;
+
+ while (*pprev) {
+ pprev = &(*pprev)->next;
+ }
+
+ *pprev = data;
+}
+
+/* cfgp_usage prints format for configuration parameter
+ *
+ * @param p configuration parameter descriptor
+ * @param write 0 if no value is expected, !=0 otherwise
+ */
+static void
+cfgp_usage(const struct ipmi_cfgp *p, int write)
+{
+ if (p->name == NULL) {
+ return;
+ }
+
+ if (write && p->format == NULL) {
+ return;
+ }
+
+ printf(" %s%s%s %s\n",
+ p->name, p->is_set ? " <set_sel>" : "",
+ p->has_blocks ? " <block_sel>" : "",
+ write ? p->format : "");
+}
+
+/* ipmi_cfgp_usage prints format for configuration parameter set
+ *
+ * @param set configuration parameter descriptor array
+ * @param count number of elements in set
+ * @param write 0 if no value is expected, !=0 otherwise
+ */
+void
+ipmi_cfgp_usage(const struct ipmi_cfgp *set, int count, int write)
+{
+ const struct ipmi_cfgp *p;
+ int i;
+
+ if (set == NULL) {
+ return;
+ }
+
+ for (i = 0; i < count; i++) {
+ p = &set[i];
+
+ if (write && p->access == CFGP_RDONLY) {
+ continue;
+ }
+
+ if (!write && p->access == CFGP_WRONLY) {
+ continue;
+ }
+
+ cfgp_usage(p, write);
+ }
+}
+
+/* ipmi_cfgp_parse_data parse parameter data from command line into context
+ * @param ctx context to add data
+ * @param sel parameter selector
+ * @param argc number of elements in argv
+ * @param argv array of unparsed arguments
+ *
+ * @returns 0 on success
+ * <0 on error
+ */
+int
+ipmi_cfgp_parse_data(struct ipmi_cfgp_ctx *ctx,
+ const struct ipmi_cfgp_sel *sel, int argc, const char **argv)
+{
+ const struct ipmi_cfgp *p;
+ struct ipmi_cfgp_data *data;
+ struct ipmi_cfgp_action action;
+
+ if (ctx == NULL || sel == NULL || argv == NULL) {
+ return -1;
+ }
+
+ if (sel->param == -1 || sel->param >= ctx->count) {
+ lprintf(LOG_ERR, "invalid parameter, must be one of:");
+ ipmi_cfgp_usage(ctx->set, ctx->count, 1);
+ return -1;
+ }
+
+ if (sel->set == -1) {
+ lprintf(LOG_ERR, "set selector is not specified");
+ return -1;
+ }
+
+ if (sel->block == -1) {
+ lprintf(LOG_ERR, "block selector is not specified");
+ return -1;
+ }
+
+ p = &ctx->set[sel->param];
+
+ if (p->size == 0) {
+ return -1;
+ }
+
+ data = malloc(sizeof(struct ipmi_cfgp_data) + p->size);
+ if (data == NULL) {
+ return -1;
+ }
+
+ memset(data, 0, sizeof(struct ipmi_cfgp_data) + p->size);
+
+ action.type = CFGP_PARSE;
+ action.set = sel->set;
+ action.block = sel->block;
+ action.argc = argc;
+ action.argv = argv;
+ action.file = NULL;
+
+ if (ctx->handler(ctx->priv, p, &action, data->data) != 0) {
+ ipmi_cfgp_usage(p, 1, 1);
+ free(data);
+ data = NULL;
+ return -1;
+ }
+
+ data->sel = *sel;
+
+ cfgp_add_data(ctx, data);
+ return 0;
+}
+
+/* cfgp_get_param -- get parameter data from MC into data list within context
+ *
+ * @param ctx context
+ * @param p parameter descriptor
+ * @param set parameter set selector, can be -1 to scan all set selectors
+ * @param block parameter block selector, can be -1 to get all blocks
+ * @param quiet set to non-zero to continue on errors
+ * (required for -1 to work)
+ * @returns 0 on success, non-zero otherwise
+ */
+static int
+cfgp_get_param(struct ipmi_cfgp_ctx *ctx, const struct ipmi_cfgp *p,
+ int set, int block, int quiet)
+{
+ struct ipmi_cfgp_data *data;
+ struct ipmi_cfgp_action action;
+ int cset;
+ int cblock;
+ int ret;
+
+ if (p->size == 0) {
+ return -1;
+ }
+
+ action.type = CFGP_GET;
+ action.argc = 0;
+ action.argv = NULL;
+ action.file = NULL;
+
+ if (set == -1 && !p->is_set) {
+ set = 0;
+ }
+
+ if (block == -1 && !p->has_blocks) {
+ block = 0;
+ }
+
+ if (set == -1) {
+ cset = p->first_set;
+ } else {
+ cset = set;
+ }
+
+ action.quiet = quiet;
+
+ do {
+ if (block == -1) {
+ cblock = p->first_block;
+ } else {
+ cblock = block;
+ }
+
+ do {
+ data = malloc(sizeof(struct ipmi_cfgp_data) + p->size);
+ if (data == NULL) {
+ return -1;
+ }
+
+ memset(data, 0, sizeof(struct ipmi_cfgp_data) + p->size);
+
+ action.set = cset;
+ action.block = cblock;
+
+ ret = ctx->handler(ctx->priv, p, &action, data->data);
+ if (ret != 0) {
+ free(data);
+ data = NULL;
+
+ if (!action.quiet) {
+ return ret;
+ }
+ break;
+ }
+
+ data->sel.param = p - ctx->set;
+ data->sel.set = cset;
+ data->sel.block = cblock;
+
+ cfgp_add_data(ctx, data);
+
+ cblock++;
+ action.quiet = 1;
+ } while (block == -1);
+
+ if (ret != 0 && cblock == p->first_block) {
+ break;
+ }
+
+ cset++;
+ } while (set == -1);
+
+ return 0;
+}
+
+/* ipmi_cfgp_get -- get parameters data from MC into data list within context
+ *
+ * @param ctx context
+ * @param sel parameter selector
+ * @returns 0 on success, non-zero otherwise
+ */
+int
+ipmi_cfgp_get(struct ipmi_cfgp_ctx *ctx, const struct ipmi_cfgp_sel *sel)
+{
+ int i;
+ int ret;
+
+ if (ctx == NULL || sel == NULL) {
+ return -1;
+ }
+
+ if (sel->param != -1) {
+ if (sel->param >= ctx->count) {
+ return -1;
+ }
+
+ ret = cfgp_get_param(ctx, &ctx->set[sel->param],
+ sel->set, sel->block, 0);
+ if (ret) {
+ return -1;
+ }
+ return 0;
+ }
+
+ for (i = 0; i < ctx->count; i++) {
+ if (ctx->set[i].access == CFGP_WRONLY) {
+ continue;
+ }
+
+ if (cfgp_get_param(ctx, &ctx->set[i], sel->set, sel->block, 1)) {
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+static int
+cfgp_do_action(struct ipmi_cfgp_ctx *ctx, int action_type,
+ const struct ipmi_cfgp_sel *sel, FILE *file, int filter)
+{
+ const struct ipmi_cfgp *p;
+ struct ipmi_cfgp_data *data;
+ struct ipmi_cfgp_action action;
+ int ret;
+
+ if (ctx == NULL || sel == NULL) {
+ return -1;
+ }
+
+ action.type = action_type;
+ action.argc = 0;
+ action.argv = NULL;
+ action.file = file;
+
+ for (data = ctx->v; data != NULL; data = data->next) {
+ if (sel->param != -1 && sel->param != data->sel.param) {
+ continue;
+ }
+ if (sel->set != -1 && sel->set != data->sel.set) {
+ continue;
+ }
+ if (sel->block != -1 && sel->block != data->sel.block) {
+ continue;
+ }
+ if (ctx->set[data->sel.param].access == filter) {
+ continue;
+ }
+
+ p = &ctx->set[data->sel.param];
+
+ action.set = data->sel.set;
+ action.block = data->sel.block;
+
+ if (action_type == CFGP_SAVE) {
+ fprintf(file, "%s %s ", ctx->cmdname, p->name);
+ if (p->is_set) {
+ fprintf(file, "%d ", data->sel.set);
+ }
+ if (p->has_blocks) {
+ fprintf(file, "%d ", data->sel.block);
+ }
+ }
+
+ ret = ctx->handler(ctx->priv, p, &action, data->data);
+
+ if (action_type == CFGP_SAVE) {
+ fputc('\n', file);
+ }
+
+ if (ret != 0) {
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+int
+ipmi_cfgp_set(struct ipmi_cfgp_ctx *ctx, const struct ipmi_cfgp_sel *sel)
+{
+ return cfgp_do_action(ctx, CFGP_SET, sel, NULL, CFGP_RDONLY);
+}
+
+int
+ipmi_cfgp_save(struct ipmi_cfgp_ctx *ctx,
+ const struct ipmi_cfgp_sel *sel, FILE *file)
+{
+ if (file == NULL) {
+ return -1;
+ }
+
+ return cfgp_do_action(ctx, CFGP_SAVE, sel, file, CFGP_RDONLY);
+}
+
+int
+ipmi_cfgp_print(struct ipmi_cfgp_ctx *ctx,
+ const struct ipmi_cfgp_sel *sel, FILE *file)
+{
+ if (file == NULL) {
+ return -1;
+ }
+
+ return cfgp_do_action(ctx, CFGP_PRINT, sel, file, CFGP_RESERVED);
+}
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