#define pr_fmt(fmt) KBUILD_MODNAME ":%s: " fmt, __func__ #ifdef CONFIG_PROC_FS #include #include #include #include #include #include #include #include #include #include #include #include #include "mpc.h" #include "mpoa_caches.h" /* * mpoa_proc.c: Implementation MPOA client's proc * file system statistics */ #if 1 #define dprintk(format, args...) \ printk(KERN_DEBUG "mpoa:%s: " format, __FILE__, ##args) /* debug */ #else #define dprintk(format, args...) \ do { if (0) \ printk(KERN_DEBUG "mpoa:%s: " format, __FILE__, ##args);\ } while (0) #endif #if 0 #define ddprintk(format, args...) \ printk(KERN_DEBUG "mpoa:%s: " format, __FILE__, ##args) /* debug */ #else #define ddprintk(format, args...) \ do { if (0) \ printk(KERN_DEBUG "mpoa:%s: " format, __FILE__, ##args);\ } while (0) #endif #define STAT_FILE_NAME "mpc" /* Our statistic file's name */ extern struct mpoa_client *mpcs; extern struct proc_dir_entry *atm_proc_root; /* from proc.c. */ static int proc_mpc_open(struct inode *inode, struct file *file); static ssize_t proc_mpc_write(struct file *file, const char __user *buff, size_t nbytes, loff_t *ppos); static int parse_qos(const char *buff); /* * Define allowed FILE OPERATIONS */ static const struct file_operations mpc_file_operations = { .owner = THIS_MODULE, .open = proc_mpc_open, .read = seq_read, .llseek = seq_lseek, .write = proc_mpc_write, .release = seq_release, }; /* * Returns the state of an ingress cache entry as a string */ static const char *ingress_state_string(int state) { switch (state) { case INGRESS_RESOLVING: return "resolving "; case INGRESS_RESOLVED: return "resolved "; case INGRESS_INVALID: return "invalid "; case INGRESS_REFRESHING: return "refreshing "; } return ""; } /* * Returns the state of an egress cache entry as a string */ static const char *egress_state_string(int state) { switch (state) { case EGRESS_RESOLVED: return "resolved "; case EGRESS_PURGE: return "purge "; case EGRESS_INVALID: return "invalid "; } return ""; } /* * FIXME: mpcs (and per-mpc lists) have no locking whatsoever. */ static void *mpc_start(struct seq_file *m, loff_t *pos) { loff_t l = *pos; struct mpoa_client *mpc; if (!l--) return SEQ_START_TOKEN; for (mpc = mpcs; mpc; mpc = mpc->next) if (!l--) return mpc; return NULL; } static void *mpc_next(struct seq_file *m, void *v, loff_t *pos) { struct mpoa_client *p = v; (*pos)++; return v == SEQ_START_TOKEN ? mpcs : p->next; } static void mpc_stop(struct seq_file *m, void *v) { } /* * READING function - called when the /proc/atm/mpoa file is read from. */ static int mpc_show(struct seq_file *m, void *v) { struct mpoa_client *mpc = v; int i; in_cache_entry *in_entry; eg_cache_entry *eg_entry; struct timeval now; unsigned char ip_string[16]; if (v == SEQ_START_TOKEN) { atm_mpoa_disp_qos(m); return 0; } seq_printf(m, "\nInterface %d:\n\n", mpc->dev_num); seq_printf(m, "Ingress Entries:\nIP address State Holding time Packets fwded VPI VCI\n"); do_gettimeofday(&now); for (in_entry = mpc->in_cache; in_entry; in_entry = in_entry->next) { sprintf(ip_string, "%pI4", &in_entry->ctrl_info.in_dst_ip); seq_printf(m, "%-16s%s%-14lu%-12u", ip_string, ingress_state_string(in_entry->entry_state), in_entry->ctrl_info.holding_time - (now.tv_sec-in_entry->tv.tv_sec), in_entry->packets_fwded); if (in_entry->shortcut) seq_printf(m, " %-3d %-3d", in_entry->shortcut->vpi, in_entry->shortcut->vci); seq_printf(m, "\n"); } seq_printf(m, "\n"); seq_printf(m, "Egress Entries:\nIngress MPC ATM addr\nCache-id State Holding time Packets recvd Latest IP addr VPI VCI\n"); for (eg_entry = mpc->eg_cache; eg_entry; eg_entry = eg_entry->next) { unsigned char *p = eg_entry->ctrl_info.in_MPC_data_ATM_addr; for (i = 0; i < ATM_ESA_LEN; i++) seq_printf(m, "%02x", p[i]); seq_printf(m, "\n%-16lu%s%-14lu%-15u", (unsigned long)ntohl(eg_entry->ctrl_info.cache_id), egress_state_string(eg_entry->entry_state), (eg_entry->ctrl_info.holding_time - (now.tv_sec-eg_entry->tv.tv_sec)), eg_entry->packets_rcvd); /* latest IP address */ sprintf(ip_string, "%pI4", &eg_entry->latest_ip_addr); seq_printf(m, "%-16s", ip_string); if (eg_entry->shortcut) seq_printf(m, " %-3d %-3d", eg_entry->shortcut->vpi, eg_entry->shortcut->vci); seq_printf(m, "\n"); } seq_printf(m, "\n"); return 0; } static const struct seq_operations mpc_op = { .start = mpc_start, .next = mpc_next, .stop = mpc_stop, .show = mpc_show }; static int proc_mpc_open(struct inode *inode, struct file *file) { return seq_open(file, &mpc_op); } static ssize_t proc_mpc_write(struct file *file, const char __user *buff, size_t nbytes, loff_t *ppos) { char *page, *p; unsigned int len; if (nbytes == 0) return 0; if (nbytes >= PAGE_SIZE) nbytes = PAGE_SIZE-1; page = (char *)__get_free_page(GFP_KERNEL); if (!page) return -ENOMEM; for (p = page, len = 0; len < nbytes; p++, len++) { if (get_user(*p, buff++)) { free_page((unsigned long)page); return -EFAULT; } if (*p == '\0' || *p == '\n') break; } *p = '\0'; if (!parse_qos(page)) printk("mpoa: proc_mpc_write: could not parse '%s'\n", page); free_page((unsigned long)page); return len; } static int parse_qos(const char *buff) { /* possible lines look like this * add 130.230.54.142 tx=max_pcr,max_sdu rx=max_pcr,max_sdu */ unsigned char ip[4]; int tx_pcr, tx_sdu, rx_pcr, rx_sdu; __be32 ipaddr; struct atm_qos qos; memset(&qos, 0, sizeof(struct atm_qos)); if (sscanf(buff, "del %hhu.%hhu.%hhu.%hhu", ip, ip+1, ip+2, ip+3) == 4) { ipaddr = *(__be32 *)ip; return atm_mpoa_delete_qos(atm_mpoa_search_qos(ipaddr)); } if (sscanf(buff, "add %hhu.%hhu.%hhu.%hhu tx=%d,%d rx=tx", ip, ip+1, ip+2, ip+3, &tx_pcr, &tx_sdu) == 6) { rx_pcr = tx_pcr; rx_sdu = tx_sdu; } else if (sscanf(buff, "add %hhu.%hhu.%hhu.%hhu tx=%d,%d rx=%d,%d", ip, ip+1, ip+2, ip+3, &tx_pcr, &tx_sdu, &rx_pcr, &rx_sdu) != 8) return 0; ipaddr = *(__be32 *)ip; qos.txtp.traffic_class = ATM_CBR; qos.txtp.max_pcr = tx_pcr; qos.txtp.max_sdu = tx_sdu; qos.rxtp.traffic_class = ATM_CBR; qos.rxtp.max_pcr = rx_pcr; qos.rxtp.max_sdu = rx_sdu; qos.aal = ATM_AAL5; dprintk("parse_qos(): setting qos parameters to tx=%d,%d rx=%d,%d\n", qos.txtp.max_pcr, qos.txtp.max_sdu, qos.rxtp.max_pcr, qos.rxtp.max_sdu); atm_mpoa_add_qos(ipaddr, &qos); return 1; } /* * INITIALIZATION function - called when module is initialized/loaded. */ int mpc_proc_init(void) { struct proc_dir_entry *p; p = proc_create(STAT_FILE_NAME, 0, atm_proc_root, &mpc_file_operations); if (!p) { pr_err("Unable to initialize /proc/atm/%s\n", STAT_FILE_NAME); return -ENOMEM; } return 0; } /* * DELETING function - called when module is removed. */ void mpc_proc_clean(void) { remove_proc_entry(STAT_FILE_NAME, atm_proc_root); } #endif /* CONFIG_PROC_FS */ d>logplain -rw-r--r--block-range.c6948logplain -rw-r--r--block-range.h1607logplain -rw-r--r--bpf-loader.c40787logplain -rw-r--r--bpf-loader.h6215logplain -rw-r--r--bpf-prologue.c11226logplain -rw-r--r--bpf-prologue.h847logplain -rw-r--r--build-id.c19054logplain -rw-r--r--build-id.h1859logplain d---------c++184logplain -rw-r--r--cache.h733logplain -rw-r--r--call-path.c2893logplain -rw-r--r--call-path.h2203logplain -rw-r--r--callchain.c29332logplain -rw-r--r--callchain.h7881logplain -rw-r--r--cgroup.c3195logplain -rw-r--r--cgroup.h359logplain -rw-r--r--cloexec.c1950logplain -rw-r--r--cloexec.h251logplain -rw-r--r--color.c4787logplain -rw-r--r--color.h1647logplain -rw-r--r--comm.c2239logplain -rw-r--r--comm.h561logplain -rw-r--r--config.c16262logplain -rw-r--r--config.h2113logplain -rw-r--r--counts.c1026logplain -rw-r--r--counts.h790logplain -rw-r--r--cpumap.c12627logplain -rw-r--r--cpumap.h1954logplain -rw-r--r--cs-etm.h2061logplain -rw-r--r--ctype.c2018logplain -rw-r--r--data-convert-bt.c36671logplain -rw-r--r--data-convert-bt.h302logplain -rw-r--r--data-convert.h141logplain -rw-r--r--data.c3459logplain -rw-r--r--data.h1369logplain -rw-r--r--db-export.c11434logplain -rw-r--r--db-export.h3816logplain -rw-r--r--debug.c4417logplain -rw-r--r--debug.h2023logplain -rw-r--r--demangle-java.c4219logplain -rw-r--r--demangle-java.h249logplain -rw-r--r--demangle-rust.c6602logplain -rw-r--r--demangle-rust.h170logplain -rw-r--r--drv_configs.c1834logplain -rw-r--r--drv_configs.h844logplain -rw-r--r--dso.c31994logplain -rw-r--r--dso.h10399logplain -rw-r--r--dwarf-aux.c33828logplain -rw-r--r--dwarf-aux.h5101logplain -rw-r--r--dwarf-regs.c1816logplain -rw-r--r--env.c1884logplain -rw-r--r--env.h1268logplain -rw-r--r--event.c36670logplain -rw-r--r--event.h15997logplain -rw-r--r--evlist.c47104logplain -rw-r--r--evlist.h12584logplain -rw-r--r--evsel.c63917logplain -rw-r--r--evsel.h13041logplain -rw-r--r--evsel_fprintf.c5831logplain -rw-r--r--find-vdso-map.c581logplain -rw-r--r--genelf.c11653logplain -rw-r--r--genelf.h1814logplain -rw-r--r--genelf_debug.c14374logplain -rwxr-xr-xgenerate-cmdlist.sh1141logplain -rw-r--r--group.h122logplain -rw-r--r--header.c73410logplain -rw-r--r--header.h4365logplain -rw-r--r--help-unknown-cmd.c3221logplain