From 598fe0dd0d8e3dfbbccac75d45a17af7d49963cc Mon Sep 17 00:00:00 2001 From: Cristian Dumitrescu Date: Sat, 10 Jul 2021 01:20:35 +0100 Subject: [PATCH] examples/pipeline: support selector table Add application-level support for selector tables. Signed-off-by: Churchill Khangar Signed-off-by: Cristian Dumitrescu --- examples/pipeline/cli.c | 563 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 563 insertions(+) diff --git a/examples/pipeline/cli.c b/examples/pipeline/cli.c index 30754e319a..f67783c8fa 100644 --- a/examples/pipeline/cli.c +++ b/examples/pipeline/cli.c @@ -1368,6 +1368,467 @@ cmd_pipeline_table_show(char **tokens, snprintf(out, out_size, MSG_ARG_INVALID, "table_name"); } +static const char cmd_pipeline_selector_group_add_help[] = +"pipeline selector group add\n"; + +static void +cmd_pipeline_selector_group_add(char **tokens, + uint32_t n_tokens, + char *out, + size_t out_size, + void *obj) +{ + struct pipeline *p; + char *pipeline_name, *selector_name; + uint32_t group_id; + int status; + + if (n_tokens != 6) { + snprintf(out, out_size, MSG_ARG_MISMATCH, tokens[0]); + return; + } + + pipeline_name = tokens[1]; + p = pipeline_find(obj, pipeline_name); + if (!p || !p->ctl) { + snprintf(out, out_size, MSG_ARG_INVALID, "pipeline_name"); + return; + } + + if (strcmp(tokens[2], "selector") != 0) { + snprintf(out, out_size, MSG_ARG_NOT_FOUND, "selector"); + return; + } + + selector_name = tokens[3]; + + if (strcmp(tokens[4], "group") || + strcmp(tokens[5], "add")) { + snprintf(out, out_size, MSG_ARG_NOT_FOUND, "group add"); + return; + } + + status = rte_swx_ctl_pipeline_selector_group_add(p->ctl, + selector_name, + &group_id); + if (status) + snprintf(out, out_size, MSG_CMD_FAIL, tokens[0]); + else + snprintf(out, out_size, "Group ID: %u\n", group_id); +} + +static const char cmd_pipeline_selector_group_delete_help[] = +"pipeline selector group delete \n"; + +static void +cmd_pipeline_selector_group_delete(char **tokens, + uint32_t n_tokens, + char *out, + size_t out_size, + void *obj) +{ + struct pipeline *p; + char *pipeline_name, *selector_name; + uint32_t group_id; + int status; + + if (n_tokens != 7) { + snprintf(out, out_size, MSG_ARG_MISMATCH, tokens[0]); + return; + } + + pipeline_name = tokens[1]; + p = pipeline_find(obj, pipeline_name); + if (!p || !p->ctl) { + snprintf(out, out_size, MSG_ARG_INVALID, "pipeline_name"); + return; + } + + if (strcmp(tokens[2], "selector") != 0) { + snprintf(out, out_size, MSG_ARG_NOT_FOUND, "selector"); + return; + } + + selector_name = tokens[3]; + + if (strcmp(tokens[4], "group") || + strcmp(tokens[5], "delete")) { + snprintf(out, out_size, MSG_ARG_NOT_FOUND, "group delete"); + return; + } + + if (parser_read_uint32(&group_id, tokens[6]) != 0) { + snprintf(out, out_size, MSG_ARG_INVALID, "group_id"); + return; + } + + status = rte_swx_ctl_pipeline_selector_group_delete(p->ctl, + selector_name, + group_id); + if (status) + snprintf(out, out_size, MSG_CMD_FAIL, tokens[0]); +} + +#define GROUP_MEMBER_INFO_TOKENS_MAX 6 + +static int +token_is_comment(const char *token) +{ + if ((token[0] == '#') || + (token[0] == ';') || + ((token[0] == '/') && (token[1] == '/'))) + return 1; /* TRUE. */ + + return 0; /* FALSE. */ +} + +static int +pipeline_selector_group_member_read(const char *string, + uint32_t *group_id, + uint32_t *member_id, + uint32_t *weight, + int *is_blank_or_comment) +{ + char *token_array[GROUP_MEMBER_INFO_TOKENS_MAX], **tokens; + char *s0 = NULL, *s; + uint32_t n_tokens = 0, group_id_val, member_id_val, weight_val; + int blank_or_comment = 0; + + /* Check input arguments. */ + if (!string || !string[0]) + goto error; + + /* Memory allocation. */ + s0 = strdup(string); + if (!s0) + goto error; + + /* Parse the string into tokens. */ + for (s = s0; ; ) { + char *token; + + token = strtok_r(s, " \f\n\r\t\v", &s); + if (!token || token_is_comment(token)) + break; + + if (n_tokens > GROUP_MEMBER_INFO_TOKENS_MAX) + goto error; + + token_array[n_tokens] = token; + n_tokens++; + } + + if (!n_tokens) { + blank_or_comment = 1; + goto error; + } + + tokens = token_array; + + if (n_tokens < 4 || + strcmp(tokens[0], "group") || + strcmp(tokens[2], "member")) + goto error; + + /* + * Group ID. + */ + if (parser_read_uint32(&group_id_val, tokens[1]) != 0) + goto error; + *group_id = group_id_val; + + /* + * Member ID. + */ + if (parser_read_uint32(&member_id_val, tokens[3]) != 0) + goto error; + *member_id = member_id_val; + + tokens += 4; + n_tokens -= 4; + + /* + * Weight. + */ + if (n_tokens && !strcmp(tokens[0], "weight")) { + if (n_tokens < 2) + goto error; + + if (parser_read_uint32(&weight_val, tokens[1]) != 0) + goto error; + *weight = weight_val; + + tokens += 2; + n_tokens -= 2; + } + + if (n_tokens) + goto error; + + free(s0); + return 0; + +error: + free(s0); + if (is_blank_or_comment) + *is_blank_or_comment = blank_or_comment; + return -EINVAL; +} + +static int +pipeline_selector_group_members_add(struct rte_swx_ctl_pipeline *p, + const char *selector_name, + FILE *file, + uint32_t *file_line_number) +{ + char *line = NULL; + uint32_t line_id = 0; + int status = 0; + + /* Buffer allocation. */ + line = malloc(MAX_LINE_SIZE); + if (!line) + return -ENOMEM; + + /* File read. */ + for (line_id = 1; ; line_id++) { + uint32_t group_id, member_id, weight; + int is_blank_or_comment; + + if (fgets(line, MAX_LINE_SIZE, file) == NULL) + break; + + status = pipeline_selector_group_member_read(line, + &group_id, + &member_id, + &weight, + &is_blank_or_comment); + if (status) { + if (is_blank_or_comment) + continue; + + goto error; + } + + status = rte_swx_ctl_pipeline_selector_group_member_add(p, + selector_name, + group_id, + member_id, + weight); + if (status) + goto error; + } + +error: + free(line); + *file_line_number = line_id; + return status; +} + +static const char cmd_pipeline_selector_group_member_add_help[] = +"pipeline selector group member add "; + +static void +cmd_pipeline_selector_group_member_add(char **tokens, + uint32_t n_tokens, + char *out, + size_t out_size, + void *obj) +{ + struct pipeline *p; + char *pipeline_name, *selector_name, *file_name; + FILE *file = NULL; + uint32_t file_line_number = 0; + int status; + + if (n_tokens != 8) { + snprintf(out, out_size, MSG_ARG_MISMATCH, tokens[0]); + return; + } + + pipeline_name = tokens[1]; + p = pipeline_find(obj, pipeline_name); + if (!p || !p->ctl) { + snprintf(out, out_size, MSG_ARG_INVALID, "pipeline_name"); + return; + } + + if (strcmp(tokens[2], "selector") != 0) { + snprintf(out, out_size, MSG_ARG_NOT_FOUND, "selector"); + return; + } + + selector_name = tokens[3]; + + if (strcmp(tokens[4], "group") || + strcmp(tokens[5], "member") || + strcmp(tokens[6], "add")) { + snprintf(out, out_size, MSG_ARG_NOT_FOUND, "group member add"); + return; + } + + file_name = tokens[7]; + file = fopen(file_name, "r"); + if (!file) { + snprintf(out, out_size, "Cannot open file %s.\n", file_name); + return; + } + + status = pipeline_selector_group_members_add(p->ctl, + selector_name, + file, + &file_line_number); + if (status) + snprintf(out, out_size, "Invalid entry in file %s at line %u\n", + file_name, + file_line_number); + + fclose(file); +} + +static int +pipeline_selector_group_members_delete(struct rte_swx_ctl_pipeline *p, + const char *selector_name, + FILE *file, + uint32_t *file_line_number) +{ + char *line = NULL; + uint32_t line_id = 0; + int status = 0; + + /* Buffer allocation. */ + line = malloc(MAX_LINE_SIZE); + if (!line) + return -ENOMEM; + + /* File read. */ + for (line_id = 1; ; line_id++) { + uint32_t group_id, member_id, weight; + int is_blank_or_comment; + + if (fgets(line, MAX_LINE_SIZE, file) == NULL) + break; + + status = pipeline_selector_group_member_read(line, + &group_id, + &member_id, + &weight, + &is_blank_or_comment); + if (status) { + if (is_blank_or_comment) + continue; + + goto error; + } + + status = rte_swx_ctl_pipeline_selector_group_member_delete(p, + selector_name, + group_id, + member_id); + if (status) + goto error; + } + +error: + free(line); + *file_line_number = line_id; + return status; +} + +static const char cmd_pipeline_selector_group_member_delete_help[] = +"pipeline selector group member delete "; + +static void +cmd_pipeline_selector_group_member_delete(char **tokens, + uint32_t n_tokens, + char *out, + size_t out_size, + void *obj) +{ + struct pipeline *p; + char *pipeline_name, *selector_name, *file_name; + FILE *file = NULL; + uint32_t file_line_number = 0; + int status; + + if (n_tokens != 8) { + snprintf(out, out_size, MSG_ARG_MISMATCH, tokens[0]); + return; + } + + pipeline_name = tokens[1]; + p = pipeline_find(obj, pipeline_name); + if (!p || !p->ctl) { + snprintf(out, out_size, MSG_ARG_INVALID, "pipeline_name"); + return; + } + + if (strcmp(tokens[2], "selector") != 0) { + snprintf(out, out_size, MSG_ARG_NOT_FOUND, "selector"); + return; + } + + selector_name = tokens[3]; + + if (strcmp(tokens[4], "group") || + strcmp(tokens[5], "member") || + strcmp(tokens[6], "delete")) { + snprintf(out, out_size, MSG_ARG_NOT_FOUND, "group member delete"); + return; + } + + file_name = tokens[7]; + file = fopen(file_name, "r"); + if (!file) { + snprintf(out, out_size, "Cannot open file %s.\n", file_name); + return; + } + + status = pipeline_selector_group_members_delete(p->ctl, + selector_name, + file, + &file_line_number); + if (status) + snprintf(out, out_size, "Invalid entry in file %s at line %u\n", + file_name, + file_line_number); + + fclose(file); +} + +static const char cmd_pipeline_selector_show_help[] = +"pipeline selector show\n"; + +static void +cmd_pipeline_selector_show(char **tokens, + uint32_t n_tokens, + char *out, + size_t out_size, + void *obj) +{ + struct pipeline *p; + char *pipeline_name, *selector_name; + int status; + + if (n_tokens != 5) { + snprintf(out, out_size, MSG_ARG_MISMATCH, tokens[0]); + return; + } + + pipeline_name = tokens[1]; + p = pipeline_find(obj, pipeline_name); + if (!p || !p->ctl) { + snprintf(out, out_size, MSG_ARG_INVALID, "pipeline_name"); + return; + } + + selector_name = tokens[3]; + status = rte_swx_ctl_pipeline_selector_fprintf(stdout, + p->ctl, selector_name); + if (status) + snprintf(out, out_size, MSG_ARG_INVALID, "selector_name"); +} + static const char cmd_pipeline_commit_help[] = "pipeline commit\n"; @@ -2168,6 +2629,11 @@ cmd_help(char **tokens, "\tpipeline table delete\n" "\tpipeline table default\n" "\tpipeline table show\n" + "\tpipeline selector group add\n" + "\tpipeline selector group delete\n" + "\tpipeline selector group member add\n" + "\tpipeline selector group member delete\n" + "\tpipeline selector show\n" "\tpipeline commit\n" "\tpipeline abort\n" "\tpipeline regrd\n" @@ -2266,6 +2732,57 @@ cmd_help(char **tokens, return; } + if ((strcmp(tokens[0], "pipeline") == 0) && + (n_tokens == 4) && + (strcmp(tokens[1], "selector") == 0) && + (strcmp(tokens[2], "group") == 0) && + (strcmp(tokens[3], "add") == 0)) { + snprintf(out, out_size, "\n%s\n", + cmd_pipeline_selector_group_add_help); + return; + } + + if ((strcmp(tokens[0], "pipeline") == 0) && + (n_tokens == 4) && + (strcmp(tokens[1], "selector") == 0) && + (strcmp(tokens[2], "group") == 0) && + (strcmp(tokens[3], "delete") == 0)) { + snprintf(out, out_size, "\n%s\n", + cmd_pipeline_selector_group_delete_help); + return; + } + + if ((strcmp(tokens[0], "pipeline") == 0) && + (n_tokens == 5) && + (strcmp(tokens[1], "selector") == 0) && + (strcmp(tokens[2], "group") == 0) && + (strcmp(tokens[3], "member") == 0) && + (strcmp(tokens[4], "add") == 0)) { + snprintf(out, out_size, "\n%s\n", + cmd_pipeline_selector_group_member_add_help); + return; + } + + if ((strcmp(tokens[0], "pipeline") == 0) && + (n_tokens == 5) && + (strcmp(tokens[1], "selector") == 0) && + (strcmp(tokens[2], "group") == 0) && + (strcmp(tokens[3], "member") == 0) && + (strcmp(tokens[4], "delete") == 0)) { + snprintf(out, out_size, "\n%s\n", + cmd_pipeline_selector_group_member_delete_help); + return; + } + + if ((strcmp(tokens[0], "pipeline") == 0) && + (n_tokens == 3) && + (strcmp(tokens[1], "selector") == 0) && + (strcmp(tokens[2], "show") == 0)) { + snprintf(out, out_size, "\n%s\n", + cmd_pipeline_selector_show_help); + return; + } + if ((strcmp(tokens[0], "pipeline") == 0) && (n_tokens == 2) && (strcmp(tokens[1], "commit") == 0)) { @@ -2468,6 +2985,52 @@ cli_process(char *in, char *out, size_t out_size, void *obj) return; } + if ((n_tokens >= 6) && + (strcmp(tokens[2], "selector") == 0) && + (strcmp(tokens[4], "group") == 0) && + (strcmp(tokens[5], "add") == 0)) { + cmd_pipeline_selector_group_add(tokens, n_tokens, out, + out_size, obj); + return; + } + + if ((n_tokens >= 6) && + (strcmp(tokens[2], "selector") == 0) && + (strcmp(tokens[4], "group") == 0) && + (strcmp(tokens[5], "delete") == 0)) { + cmd_pipeline_selector_group_delete(tokens, n_tokens, out, + out_size, obj); + return; + } + + if ((n_tokens >= 7) && + (strcmp(tokens[2], "selector") == 0) && + (strcmp(tokens[4], "group") == 0) && + (strcmp(tokens[5], "member") == 0) && + (strcmp(tokens[6], "add") == 0)) { + cmd_pipeline_selector_group_member_add(tokens, n_tokens, out, + out_size, obj); + return; + } + + if ((n_tokens >= 7) && + (strcmp(tokens[2], "selector") == 0) && + (strcmp(tokens[4], "group") == 0) && + (strcmp(tokens[5], "member") == 0) && + (strcmp(tokens[6], "delete") == 0)) { + cmd_pipeline_selector_group_member_delete(tokens, n_tokens, out, + out_size, obj); + return; + } + + if ((n_tokens >= 5) && + (strcmp(tokens[2], "selector") == 0) && + (strcmp(tokens[4], "show") == 0)) { + cmd_pipeline_selector_show(tokens, n_tokens, out, + out_size, obj); + return; + } + if ((n_tokens >= 3) && (strcmp(tokens[2], "commit") == 0)) { cmd_pipeline_commit(tokens, n_tokens, out, -- 2.20.1