]> git.proxmox.com Git - mirror_iproute2.git/blobdiff - tc/tc.c
treewide: refactor help messages
[mirror_iproute2.git] / tc / tc.c
diff --git a/tc/tc.c b/tc/tc.c
index ad9f07e9786de0e93c1d2b66d194b6a6c44a89bb..e08f322a528a5fe6a27056804a2d71cca4ddb13f 100644 (file)
--- a/tc/tc.c
+++ b/tc/tc.c
@@ -33,7 +33,6 @@
 int show_stats;
 int show_details;
 int show_raw;
-int show_pretty;
 int show_graph;
 int timestamp;
 
@@ -42,6 +41,8 @@ int use_iec;
 int force;
 bool use_names;
 int json;
+int color;
+int oneline;
 
 static char *conf_file;
 
@@ -60,10 +61,13 @@ static int print_noqopt(struct qdisc_util *qu, FILE *f,
        return 0;
 }
 
-static int parse_noqopt(struct qdisc_util *qu, int argc, char **argv, struct nlmsghdr *n, const char *dev)
+static int parse_noqopt(struct qdisc_util *qu, int argc, char **argv,
+                       struct nlmsghdr *n, const char *dev)
 {
        if (argc) {
-               fprintf(stderr, "Unknown qdisc \"%s\", hence option \"%s\" is unparsable\n", qu->id, *argv);
+               fprintf(stderr,
+                       "Unknown qdisc \"%s\", hence option \"%s\" is unparsable\n",
+                       qu->id, *argv);
                return -1;
        }
        return 0;
@@ -79,12 +83,15 @@ static int print_nofopt(struct filter_util *qu, FILE *f, struct rtattr *opt, __u
        return 0;
 }
 
-static int parse_nofopt(struct filter_util *qu, char *fhandle, int argc, char **argv, struct nlmsghdr *n)
+static int parse_nofopt(struct filter_util *qu, char *fhandle,
+                       int argc, char **argv, struct nlmsghdr *n)
 {
        __u32 handle;
 
        if (argc) {
-               fprintf(stderr, "Unknown filter \"%s\", hence option \"%s\" is unparsable\n", qu->id, *argv);
+               fprintf(stderr,
+                       "Unknown filter \"%s\", hence option \"%s\" is unparsable\n",
+                       qu->id, *argv);
                return -1;
        }
        if (fhandle) {
@@ -186,23 +193,29 @@ noexist:
 
 static void usage(void)
 {
-       fprintf(stderr, "Usage: tc [ OPTIONS ] OBJECT { COMMAND | help }\n"
-                       "       tc [-force] -batch filename\n"
-                       "where  OBJECT := { qdisc | class | filter | action | monitor | exec }\n"
-                       "       OPTIONS := { -s[tatistics] | -d[etails] | -r[aw] | -p[retty] | -b[atch] [filename] | -n[etns] name |\n"
-                       "                    -nm | -nam[es] | { -cf | -conf } path } | -j[son]\n");
+       fprintf(stderr,
+               "Usage: tc [ OPTIONS ] OBJECT { COMMAND | help }\n"
+               "       tc [-force] -batch filename\n"
+               "where  OBJECT := { qdisc | class | filter | chain |\n"
+               "                   action | monitor | exec }\n"
+               "       OPTIONS := { -V[ersion] | -s[tatistics] | -d[etails] | -r[aw] |\n"
+               "                   -o[neline] | -j[son] | -p[retty] | -c[olor]\n"
+               "                   -b[atch] [filename] | -n[etns] name |\n"
+               "                    -nm | -nam[es] | { -cf | -conf } path }\n");
 }
 
-static int do_cmd(int argc, char **argv)
+static int do_cmd(int argc, char **argv, void *buf, size_t buflen)
 {
        if (matches(*argv, "qdisc") == 0)
                return do_qdisc(argc-1, argv+1);
        if (matches(*argv, "class") == 0)
                return do_class(argc-1, argv+1);
        if (matches(*argv, "filter") == 0)
-               return do_filter(argc-1, argv+1);
+               return do_filter(argc-1, argv+1, buf, buflen);
+       if (matches(*argv, "chain") == 0)
+               return do_chain(argc-1, argv+1, buf, buflen);
        if (matches(*argv, "actions") == 0)
-               return do_action(argc-1, argv+1);
+               return do_action(argc-1, argv+1, buf, buflen);
        if (matches(*argv, "monitor") == 0)
                return do_tcmonitor(argc-1, argv+1);
        if (matches(*argv, "exec") == 0)
@@ -217,16 +230,117 @@ static int do_cmd(int argc, char **argv)
        return -1;
 }
 
+#define TC_MAX_SUBC    10
+static bool batchsize_enabled(int argc, char *argv[])
+{
+       struct {
+               char *c;
+               char *subc[TC_MAX_SUBC];
+       } table[] = {
+               { "filter", { "add", "delete", "change", "replace", NULL} },
+               { "actions", { "add", "change", "replace", NULL} },
+               { NULL },
+       }, *iter;
+       char *s;
+       int i;
+
+       if (argc < 2)
+               return false;
+
+       for (iter = table; iter->c; iter++) {
+               if (matches(argv[0], iter->c))
+                       continue;
+               for (i = 0; i < TC_MAX_SUBC; i++) {
+                       s = iter->subc[i];
+                       if (s && matches(argv[1], s) == 0)
+                               return true;
+               }
+       }
+
+       return false;
+}
+
+struct batch_buf {
+       struct batch_buf        *next;
+       char                    buf[16420];     /* sizeof (struct nlmsghdr) +
+                                                  max(sizeof (struct tcmsg) +
+                                                  sizeof (struct tcamsg)) +
+                                                  MAX_MSG */
+};
+
+static struct batch_buf *get_batch_buf(struct batch_buf **pool,
+                                      struct batch_buf **head,
+                                      struct batch_buf **tail)
+{
+       struct batch_buf *buf;
+
+       if (*pool == NULL)
+               buf = calloc(1, sizeof(struct batch_buf));
+       else {
+               buf = *pool;
+               *pool = (*pool)->next;
+               memset(buf, 0, sizeof(struct batch_buf));
+       }
+
+       if (*head == NULL)
+               *head = *tail = buf;
+       else {
+               (*tail)->next = buf;
+               (*tail) = buf;
+       }
+
+       return buf;
+}
+
+static void put_batch_bufs(struct batch_buf **pool,
+                          struct batch_buf **head,
+                          struct batch_buf **tail)
+{
+       if (*head == NULL || *tail == NULL)
+               return;
+
+       if (*pool == NULL)
+               *pool = *head;
+       else {
+               (*tail)->next = *pool;
+               *pool = *head;
+       }
+       *head = NULL;
+       *tail = NULL;
+}
+
+static void free_batch_bufs(struct batch_buf **pool)
+{
+       struct batch_buf *buf;
+
+       for (buf = *pool; buf != NULL; buf = *pool) {
+               *pool = buf->next;
+               free(buf);
+       }
+       *pool = NULL;
+}
+
 static int batch(const char *name)
 {
-       char *line = NULL;
+       struct batch_buf *head = NULL, *tail = NULL, *buf_pool = NULL;
+       char *largv[100], *largv_next[100];
+       char *line, *line_next = NULL;
+       bool bs_enabled = false;
+       bool lastline = false;
+       int largc, largc_next;
+       bool bs_enabled_saved;
+       bool bs_enabled_next;
+       int batchsize = 0;
        size_t len = 0;
        int ret = 0;
+       int err;
+       bool send;
 
        batch_mode = 1;
        if (name && strcmp(name, "-") != 0) {
                if (freopen(name, "r", stdin) == NULL) {
-                       fprintf(stderr, "Cannot open file \"%s\" for reading: %s\n",
+                       fprintf(stderr,
+                               "Cannot open file \"%s\" for reading: %s\n",
                                name, strerror(errno));
                        return -1;
                }
@@ -240,25 +354,96 @@ static int batch(const char *name)
        }
 
        cmdlineno = 0;
-       while (getcmdline(&line, &len, stdin) != -1) {
-               char *largv[100];
-               int largc;
+       if (getcmdline(&line, &len, stdin) == -1)
+               goto Exit;
+       largc = makeargs(line, largv, 100);
+       bs_enabled = batchsize_enabled(largc, largv);
+       do {
+               if (getcmdline(&line_next, &len, stdin) == -1)
+                       lastline = true;
+
+               largc_next = makeargs(line_next, largv_next, 100);
+               bs_enabled_next = batchsize_enabled(largc_next, largv_next);
+               if (bs_enabled) {
+                       struct batch_buf *buf;
+
+                       buf = get_batch_buf(&buf_pool, &head, &tail);
+                       if (!buf) {
+                               fprintf(stderr,
+                                       "failed to allocate batch_buf\n");
+                               return -1;
+                       }
+                       ++batchsize;
+               }
 
-               largc = makeargs(line, largv, 100);
-               if (largc == 0)
+               /*
+                * In batch mode, if we haven't accumulated enough commands
+                * and this is not the last command and this command & next
+                * command both support the batchsize feature, don't send the
+                * message immediately.
+                */
+               if (!lastline && bs_enabled && bs_enabled_next
+                   && batchsize != MSG_IOV_MAX)
+                       send = false;
+               else
+                       send = true;
+
+               line = line_next;
+               line_next = NULL;
+               len = 0;
+               bs_enabled_saved = bs_enabled;
+               bs_enabled = bs_enabled_next;
+
+               if (largc == 0) {
+                       largc = largc_next;
+                       memcpy(largv, largv_next, largc * sizeof(char *));
                        continue;       /* blank line */
+               }
 
-               if (do_cmd(largc, largv)) {
-                       fprintf(stderr, "Command failed %s:%d\n", name, cmdlineno);
+               err = do_cmd(largc, largv, tail == NULL ? NULL : tail->buf,
+                            tail == NULL ? 0 : sizeof(tail->buf));
+               fflush(stdout);
+               if (err != 0) {
+                       fprintf(stderr, "Command failed %s:%d\n", name,
+                               cmdlineno - 1);
                        ret = 1;
                        if (!force)
                                break;
                }
-       }
-       if (line)
-               free(line);
+               largc = largc_next;
+               memcpy(largv, largv_next, largc * sizeof(char *));
+
+               if (send && bs_enabled_saved) {
+                       struct iovec *iov, *iovs;
+                       struct batch_buf *buf;
+                       struct nlmsghdr *n;
+
+                       iov = iovs = malloc(batchsize * sizeof(struct iovec));
+                       for (buf = head; buf != NULL; buf = buf->next, ++iov) {
+                               n = (struct nlmsghdr *)&buf->buf;
+                               iov->iov_base = n;
+                               iov->iov_len = n->nlmsg_len;
+                       }
+
+                       err = rtnl_talk_iov(&rth, iovs, batchsize, NULL);
+                       put_batch_bufs(&buf_pool, &head, &tail);
+                       free(iovs);
+                       if (err < 0) {
+                               fprintf(stderr, "Command failed %s:%d\n", name,
+                                       cmdlineno - (batchsize + err) - 1);
+                               ret = 1;
+                               if (!force)
+                                       break;
+                       }
+                       batchsize = 0;
+               }
+       } while (!lastline);
 
+       free_batch_bufs(&buf_pool);
+Exit:
+       free(line);
        rtnl_close(&rth);
+
        return ret;
 }
 
@@ -279,7 +464,7 @@ int main(int argc, char **argv)
                } else if (matches(argv[1], "-raw") == 0) {
                        ++show_raw;
                } else if (matches(argv[1], "-pretty") == 0) {
-                       ++show_pretty;
+                       ++pretty;
                } else if (matches(argv[1], "-graph") == 0) {
                        show_graph = 1;
                } else if (matches(argv[1], "-Version") == 0) {
@@ -308,6 +493,7 @@ int main(int argc, char **argv)
                                matches(argv[1], "-conf") == 0) {
                        NEXT_ARG();
                        conf_file = argv[1];
+               } else if (matches_color(argv[1], &color)) {
                } else if (matches(argv[1], "-timestamp") == 0) {
                        timestamp++;
                } else if (matches(argv[1], "-tshort") == 0) {
@@ -315,13 +501,21 @@ int main(int argc, char **argv)
                        ++timestamp_short;
                } else if (matches(argv[1], "-json") == 0) {
                        ++json;
+               } else if (matches(argv[1], "-oneline") == 0) {
+                       ++oneline;
                } else {
-                       fprintf(stderr, "Option \"%s\" is unknown, try \"tc -help\".\n", argv[1]);
+                       fprintf(stderr,
+                               "Option \"%s\" is unknown, try \"tc -help\".\n",
+                               argv[1]);
                        return -1;
                }
                argc--; argv++;
        }
 
+       _SL_ = oneline ? "\\" : "\n";
+
+       check_enable_color(color, json);
+
        if (batch_file)
                return batch(batch_file);
 
@@ -341,7 +535,7 @@ int main(int argc, char **argv)
                goto Exit;
        }
 
-       ret = do_cmd(argc-1, argv+1);
+       ret = do_cmd(argc-1, argv+1, NULL, 0);
 Exit:
        rtnl_close(&rth);